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{{short description|Nazi Germany's invasion of the Soviet Union in World War II}}
{{good article}}
{{use dmy dates|date=August 2021}}
{{Infobox military conflict
{{Infobox military conflict

| conflict = Operation Barbarossa
| conflict = Operation Barbarossa
| commander1 = {{unbulleted list|{{flagicon|Nazi Germany}} '''[[Adolf Hitler]]'''
| partof = the [[Eastern Front (World War II)|Eastern Front]] of [[World War II]]
|{{nowrap|{{flagicon|Nazi Germany}} [[Walther von Brauchitsch]]}}
| image = Operation Barbarossa Infobox.jpg
|{{flagicon|Nazi Germany}} [[Hermann Göring]]
| image_size = 300
|{{flagicon|Nazi Germany}} [[Franz Halder]]
| caption = Clockwise from top left: {{flatlist|
|{{flagicon|Nazi Germany}} [[Fedor von Bock]]
* German soldiers advance through northern Russia
|{{flagicon|Nazi Germany}} [[Gerd von Rundstedt]]
* German flamethrower team
|{{flagicon|Nazi Germany}} [[Wilhelm Ritter von Leeb|W. Ritter von Leeb]]
* Soviet [[Ilyushin Il-2]]s over German positions near Moscow
|{{flagicon|Kingdom of Romania}} [[Horia Sima]]
* Soviet POWs on the way to prison camps
|{{flagicon|FIN}} [[Carl Gustaf Emil Mannerheim|C.G.E. Mannerheim]]
* Soviet soldiers fire artillery
|{{flagicon|Russia|naval}} [[Andrey Vlasov]]
}}
|{{flagicon|Russia|naval}} [[Sergey Taboritsky]]
| date = 22 June – 5 December 1941<br />({{Age in years, months, weeks and days|month1=06|day1=22|year1=1941|month2=12|day2=05|year2=1941}})
|{{flagicon|Ukraine}} [[Stepan Bandera]]
| place = {{hlist|Central Europe|[[Northern Europe|Northeast Europe]]|Eastern Europe}}
| result = [[Axis powers|Axis]] failure
* Opening of the [[Eastern Front (World War II)|Eastern Front]]
* Axis failure to reach the [[A-A line]]
* Beginning of [[Battle of Moscow#Soviet counter-offensive|Soviet Winter counter-offensive]]
| combatant1 = {{indented plainlist|
* {{flagicon|Nazi Germany}} '''[[Nazi Germany|Germany]]'''{{efn|Germany's allies, in total, provided a significant number of troops and material to the front. There were also numerous units under German command recruited in [[German-occupied Europe]] and sympathetic [[puppet state|puppet]] or neutral states, including the Spanish [[Blue Division]], the [[Legion of French Volunteers Against Bolshevism]], and the [[369th Croatian Reinforced Infantry Regiment (Wehrmacht)|369th Croatian Infantry Regiment]].}}
* {{flagcountry|Kingdom of Romania}}
* {{flag|Finland}}
* {{flagcountry|Fascist Italy (1922–1943)}}
* {{flagcountry|Kingdom of Hungary (1920–1946)}}
* {{flagcountry|Slovak Republic (1939–1945)|name=Slovakia}}
}}
}}
| commander2 = {{unbulleted list|{{flagicon|Soviet Union|1936}} '''[[Nikolai Bukharin]]'''
|{{flagicon|Soviet Union|1936}} [[Georgy Zhukov]]
|{{flagicon|Soviet Union|1936}} [[Leon Trotsky]]
|{{nowrap|{{flagicon|Soviet Union|1936}} [[Mikhail Tukhachevsky]]}}
|{{flagicon|Soviet Union|1936}} [[Grigory Zinoviev]]
|{{nowrap|{{flagicon|Soviet Union|1936}} [[Aleksandr Vasilevsky]]}}
|{{flagicon|Soviet Union|1936}} [[Markian Popov]]
|{{flagicon|Soviet Union|1936}} [[Maria Spiridonova]]
|{{flagicon|Soviet Union|1936}} [[Inessa Armand]] {{KIA}}
|{{flagicon|Soviet Union|1936}} [[Pavel Dybenko]] {{KIA}}
|{{flagicon|Soviet Union|1936}} [[Vasily Blyukher]]{{KIA}}
|{{flagicon|Soviet Union|1936}} [[Mikhail Kirponos]]{{KIA}}}}
| combatant2 = {{flagicon|Soviet Union|1936}} '''[[Soviet Union]]'''
| combatant2 = {{flagicon|Soviet Union|1936}} '''[[Soviet Union]]'''
| partof = the [[Eastern Front (World War II)|Eastern Front]] of [[World War II]]
| commander1 = {{plainlist|
| combatant1 = {{unbulleted list|{{flagicon|Nazi Germany}} '''[[Nazi Germany|Germany]]'''{{efn|Germany's allies, in total, provided a significant number of troops and material to the front. There were also numerous units under German command recruited in [[German-occupied Europe]] and sympathetic [[puppet state|puppet]] or neutral states, including the [[Blue Division]] from Spain, the [[Legion of French Volunteers Against Bolshevism]], and the [[369th Croatian Reinforced Infantry Regiment (Wehrmacht)|369th Croatian Infantry Regiment]].}}
* {{flagicon|Nazi Germany}} '''[[Adolf Hitler]]'''
|{{flagcountry|Kingdom of Romania}}
* {{nowrap|{{flagicon|Nazi Germany}} [[Walther von Brauchitsch]]}}
|{{flag|Finland}}
* {{flagicon|Nazi Germany}} [[Hermann Göring]]
|{{flagcountry|Kingdom of Italy}}
* {{flagicon|Nazi Germany}} [[Franz Halder]]
|{{flagcountry|Kingdom of Hungary (1920–46)}}
* {{flagicon|Nazi Germany}} [[Fedor von Bock]]
|{{flagcountry|Slovak Republic (1939–1945)|name=Slovakia}}
* {{flagicon|Nazi Germany}} [[Gerd von Rundstedt]]
* {{flagicon|Nazi Germany}} [[Wilhelm Ritter von Leeb|Wilhelm R. von Leeb]]
||{{nowrap|{{flagicon|Russia|naval}} [[Russian Liberation Army]]}}
* {{flagicon|Kingdom of Romania}} [[Ion Antonescu]]
* {{flagicon|FIN}} [[Carl Gustaf Emil Mannerheim|C.G.E. Mannerheim]]
}}
| commander2 = {{indented plainlist|
* {{flagicon|Soviet Union|1936}} '''[[Joseph Stalin]]'''
* {{flagicon|Soviet Union|1936}} [[Georgy Zhukov]]
* {{nowrap|{{flagicon|Soviet Union|1936}} [[Aleksandr Vasilevsky]]}}
* {{flagicon|Soviet Union|1936}} [[Semyon Budyonny]]
* {{flagicon|Soviet Union|1936}} [[Kliment Voroshilov]]
* {{nowrap|{{flagicon|Soviet Union|1936}} [[Semyon Timoshenko]]}}
* {{flagicon|Soviet Union|1936}} [[Markian Popov]]
* {{flagicon|Soviet Union|1936}} [[Fyodor Kuznetsov]]
* {{flagicon|Soviet Union|1936}} [[Dmitry Pavlov (general)|Dmitry Pavlov]]{{Executed}}
* {{flagicon|Soviet Union|1936}} [[Ivan Konev]]
* {{flagicon|Soviet Union|1936}} [[Mikhail Kirponos]]{{KIA}}}}
| units1 = {{Collapsible list
|title = ''Axis armies'':
|{{flagicon|Nazi Germany}} '''''[[Army Group North]]'''''
* [[16th Army (Wehrmacht)|16th Army]]
* [[18th Army (Wehrmacht)|18th Army]]
* [[4th Panzer Army]]
|{{flagicon|Nazi Germany}} '''''[[Army Group Center]]'''''
* [[2nd Army (Wehrmacht)|2nd Army]]
* [[4th Army (Wehrmacht)|4th Army]]
* [[9th Army (Wehrmacht)|9th Army]]
* [[2nd Panzer Army]]
* [[3rd Panzer Army]]
|{{flagicon|Nazi Germany}} '''''[[Army Group South]]'''''
* [[6th Army (Wehrmacht)|6th Army]]
* [[11th Army (Wehrmacht)|11th Army]]
* [[17th Army (Wehrmacht)|17th Army]]
* [[1st Panzer Army]]
* {{flagicon|Kingdom of Romania}} [[Third Army (Romania)|3rd Army]]
* {{flagicon|Kingdom of Romania}} [[Fourth Army (Romania)|4th Army]]
|''Independent armies:''
* {{flagicon|Nazi Germany|1935}} [[Army Norway (Wehrmacht)|Army of Norway]]
* {{flagicon|Finland}} [[Army of Karelia]]
}}
| units2 = {{Collapsible list
|title = ''Soviet armies'':
|{{flagicon|Soviet Union|1936}} '''''[[Northern Front (Soviet Union)|Northern Front]]'''''
* [[7th Army (Soviet Union)|7th Army]]
* [[8th Army (Soviet Union)|8th Army]]
* [[48th Army (Soviet Union)|48th Army]]
* [[52nd Army (Soviet Union)|52nd Army]]
* [[54th Army (Soviet Union)|54th Army]]
* [[55th Army (Soviet Union)|55th Army]]
|{{flagicon|Soviet Union|1936}} '''''[[Northwestern Front]]'''''
* [[11th Army (Soviet Union)|11th Army]]
* [[27th Army (Soviet Union)|27th Army]]
* [[34th Army (Soviet Union)|34th Army]]
|{{flagicon|Soviet Union|1936}} '''''[[Western Front (Soviet Union)|Western Front]]'''''
* [[3rd Army (Soviet Union)|3rd Army]]
* [[10th Army (Soviet Union)|10th Army]]
* [[13th Army (Soviet Union)|13th Army]]
* [[16th Army (Soviet Union)|16th Army]]
* [[19th Army (Soviet Union)|19th Army]]
* [[20th Army (Soviet Union)|20th Army]]
* [[22nd Army (Soviet Union)|22nd Army]]
* [[24th Army (Soviet Union)|24th Army]]
* [[28th Army (Soviet Union)|28th Army]]
* [[40th Army (Soviet Union)|40th Army]]
* [[50th Army (Soviet Union)|50th Army]]
|{{nowrap|{{flagicon|Soviet Union|1936}} '''''[[Southwestern Front (Soviet Union)|Southwestern Front]]'''''}}
* [[5th Army (Soviet Union)|5th Army]]
* [[6th Army (Soviet Union)|6th Army]]
* [[12th Army (Soviet Union)|12th Army]]
* [[21st Army (Soviet Union)|21st Army]]
* [[26th Army (Soviet Union)|26th Army]]
* [[37th Army (Soviet Union)|37th Army]]
|{{flagicon|Soviet Union|1936}} '''''[[Southern Front (Soviet Union)|Southern Front]]'''''
* [[9th Army (Soviet Union)|9th Army]]
* [[18th Army (Soviet Union)|18th Army]]
* [[Separate Coastal Army|Coastal Army]]
}}
| strength1 = '''Frontline strength (22&nbsp;June 1941)'''
{{indented plainlist|
* 3.8&nbsp;million personnel{{sfn|Clark|2012|p=73}}{{sfn|Glantz|2001|p=9}}
* 3,350–3,795 tanks{{sfn|Glantz|2010a|p=20}}{{sfn|Clark|2012|p=73}}{{sfn|Liedtke|2016|p=220}}{{sfn|Askey|2014|p=80}}
* 3,030–3,072 other AFVs{{sfn|Liedtke|2016|p=220|loc= of which 259 assault guns}}{{efn|Of the AFVs, Askey reports there were 301 assault guns, 257 tank destroyers and self-propelled guns, 1,055 armored half-tracks, 1,367 armored cars, 92 combat engineer and ammunition transport vehicles. {{sfn|Askey|2014|p=80}}}}
* 2,770–5,369 aircraft{{sfn|Glantz|2010a|p=20}}{{sfn|Bergström|2007|p=129}}
* 7,200–23,435 artillery pieces{{sfn|Clark|2012|p=73}}{{sfn|Glantz|2010a|p=20}}{{sfn|Askey|2014|p=80}}
* 17,081 mortars{{sfn|Askey|2014|p=80}}
* 600,000 horses {{sfn|Glantz|House|2015|p=384}}
* 600,000 vehicles {{sfn|Glantz|House|2015|p=384}}
}}
| strength2 = '''Frontline strength (22&nbsp;June 1941)'''
{{indented plainlist|
* 2.6–2.9&nbsp;million personnel{{sfn|Glantz|2001|p=9|loc=states 2.68 million}}{{sfn|Glantz|1998|pp=10–11, 101, 293|loc=states 2.9 million}}{{sfn|Taylor|1974|p=98|loc=states 2.6 million}}
* 11,000 tanks{{sfn|Mercatante|2012|p=64}}{{sfn|Clark|2012|p=76}}
* 7,133–9,100 military aircraft{{sfn|Glantz|2010a|p=28|loc= states 7,133 aircraft}}{{sfn|Mercatante|2012|p=64|loc=states 9,100 aircraft}}{{sfn|Clark|2012|p=76|loc=states 9,100 aircraft}}
}}
| casualties1 = '''Total military casualties:'''<br />1,000,000+
{{Collapsible list
|title = Breakdown
|'''Casualties of 1941:'''
----
According to [[German Army (Wehrmacht)|German Army]] medical reports (including [[Army of Norway (Wehrmacht)|Army Norway]]):{{sfn|Askey|2014|p=178}}
* 186,452 killed
* 40,157 missing
* 655,179 wounded in action{{Efn|Excludes an additional 395,799 who were deemed unfit for service due to non-combat causes, transported out of their Army Group sectors for treatment, and treated in divisional/local medical facilities. 98% of those 395,799 eventually returned to active duty service, usually after relatively short treatment, meaning about 8,000 became permanent losses. Askey 2014, p. 178.}}
* 8,000 evacuated sick
----
* 2,827 aircraft destroyed{{sfn|Bergström|2007|p=117}}
* 2,735 tanks destroyed{{sfn|Liedtke|2016|p=220}}{{sfn|Askey|2014|p=185}}
* 104 assault guns destroyed{{sfn|Liedtke|2016|p=220}}{{sfn|Askey|2014|p=185}}
----
'''Other involved country losses'''
* {{flagicon|Kingdom of Romania}} 114,000+ casualties (at least 39,000 dead or missing){{sfn|Axworthy|1995|pp=58, 286}}
* {{flagicon|Fascist Italy (1922–1943)}} 8,700 casualties{{sfn|Kirchubel|2013|loc= chpt. "Opposing Armies"}}
* {{flagicon|FIN}} 5,000+ casualties{{Efn|Includes only Finnish casualties in Northern Finland during Operation Silver Fox.{{sfn|Ziemke|1959|p=184}}}}
* {{flagicon|Kingdom of Hungary (1920–1946)}} 4,420 casualties{{Efn|855 killed, 2,288 wounded in action, 277 missing and captured, 1,000 sick and injured{{sfn|Andaházi Szeghy|2016|pp=151–152, 181}}}}
}}
| casualties2 = '''Total military casualties:'''<br />4,973,820
{{Collapsible list
|title = Breakdown
|'''Casualties of 1941:'''
----
Based on Soviet archives:{{sfn|Krivosheev|1997|pp=95–98}}
* 566,852 killed in action
* 235,339 died from non-combat causes
* 1,336,147 sick or wounded via combat and non-combat causes
* 2,335,482 missing in action or captured
* c. 500,000 Soviet [[reservist]]s captured while still mobilizing
----
* 21,200 aircraft, of which 10,600 were lost to combat{{sfn|Bergström|2007|p=117}}
* 20,500 tanks destroyed{{sfn|Sharp|2010|p=89}}
}}
| notes =
}}
{{Campaignbox Barbarossa}}
{{Campaignbox Axis–Soviet War}}
'''Operation Barbarossa''' ({{lang-de|link=no|Unternehmen Barbarossa}}) was the [[code name]] for the invasion of the [[Soviet Union]] by [[Nazi Germany]] and some of its [[Axis allies]], which started on Sunday, 22 June 1941, during [[World War II]]. The operation was named after [[Frederick Barbarossa]] ("red beard"), a 12th-century [[Holy Roman emperor]] and German king. The operation put into action Nazi Germany's ideological goal of conquering the western Soviet Union to repopulate it with [[Germans]]. The German {{lang|de|[[Generalplan Ost]]}} aimed to use some of the conquered people as [[forced labour]] for the Axis war effort while acquiring the oil reserves of the [[Caucasus]] as well as the agricultural resources of various Soviet territories. Their ultimate goal was to create more {{lang|de|[[Lebensraum]]}} (living space) for Germany, and the [[Generalplan Ost|eventual extermination]] of the indigenous [[Slavs|Slavic peoples]] by mass deportation to [[Siberia]], enslavement and genocide.{{sfn|Rich|1973|pp=204–221}}{{sfn|Snyder|2010|p=416}}

In the two years leading up to the invasion, Germany and the Soviet Union [[Molotov–Ribbentrop Pact|signed political]] and [[Nazi–Soviet economic relations (1934–41)|economic pacts]] for strategic purposes. Following the [[Soviet occupation of Bessarabia and Northern Bukovina]], the [[Oberkommando der Wehrmacht|German High Command]] began planning an invasion of the Soviet Union in July 1940 (under the codename [[Operation Otto]]), which [[Adolf Hitler]] authorized on 18 December 1940. Over the course of the operation, over 3.8 million personnel of the Axis powers—the largest invasion force in the [[history of warfare]]—invaded the western Soviet Union along a {{convert|2900|km|mi|sp=us|adj=on}} front, with 600,000 motor vehicles and over 600,000 horses for non-combat operations. The offensive marked a massive escalation of World War II, both geographically and in the formation of the [[Allies of World War II|Allied coalition]] including the Soviet Union.

The operation opened up the [[Eastern Front (World War II)|Eastern Front]], in which more forces were committed than in any other [[theater of war]] in history. The area saw some of the world's largest battles, most horrific [[war crime|atrocities]], and highest [[World War II casualties|casualties]] (for Soviet and Axis forces alike), all of which influenced the course of World War II and the subsequent [[history of the 20th century]]. The German armies eventually captured some five million Soviet [[Red Army]] troops.{{sfn|Chapoutot|2018|p=272}} The Nazis deliberately [[German mistreatment of Soviet prisoners of war|starved to death or otherwise killed]] 3.3&nbsp;million Soviet prisoners of war, and millions of civilians, as the "[[Hunger Plan]]" worked to solve German food shortages and [[Generalplan Ost|exterminate the Slavic population]] through starvation.{{sfn|Snyder|2010|pp=175–186}} [[Einsatzgruppen|Mass shootings]] and gassing operations, carried out by the Nazis or willing collaborators,{{Efn|See for instance the involvement of Latvian and Ukrainian forces in killing Jews cited by historian, Raul Hilberg.{{sfn|Hilberg|1992|pp=58–61, 199–202}}}} murdered over a million [[Soviet Jews]] as part of [[the Holocaust]].{{sfn|United States Holocaust Memorial Museum|1996|pp=50–51}}

The failure of Operation Barbarossa reversed the fortunes of [[Nazi Germany]].{{sfn|Rees|2010}} Operationally, German forces achieved significant victories and occupied some of the most important economic areas of the Soviet Union (mainly in [[Ukrainian Soviet Socialist Republic|Ukraine]]) and inflicted, as well as sustained, heavy casualties. Despite these early successes, the German offensive stalled in the [[Battle of Moscow]] at the end of 1941, and the subsequent [[Battle of Moscow#Soviet counter-offensive|Soviet winter counteroffensive]] pushed the Germans about {{convert|250|km|abbr=on}} back. The Germans had confidently expected a quick collapse of Soviet resistance as in [[Invasion of Poland|Poland]], but the Red Army absorbed the German ''[[Wehrmacht]]''{{'}}s strongest blows and bogged it down in a [[Attrition warfare|war of attrition]] for which the Germans were unprepared. The ''Wehrmacht''{{'}}s diminished forces could no longer attack along the entire Eastern Front, and subsequent operations to retake the initiative and drive deep into Soviet territory—such as [[Case Blue]] in 1942 and [[Operation Citadel]] in 1943—eventually failed, which resulted in the ''Wehrmacht''{{'}}s retreat and collapse.

{{TOC limit}}

==Background==
===Racial policies of Nazi Germany===
{{Main|Racial policy of Nazi Germany}}
As early as 1925, [[Adolf Hitler]] vaguely declared in his political manifesto and autobiography ''[[Mein Kampf]]'' that he would invade the [[Soviet Union]], asserting that the German people needed to secure {{lang|de|[[Lebensraum]]}} ('living space') to ensure the survival of Germany for generations to come.{{sfn|Stackelberg|2002|p=188}} On 10 February 1939, Hitler told his army commanders that the next war would be "purely a war of {{lang|de|[[Weltanschauung]]en}} ['worldviews']&nbsp;... totally a people's war, a [[racial war]]". On 23 November, once World War II had already started, Hitler declared that "racial war has broken out and this war shall determine who shall govern Europe, and with it, the world".{{sfn|Förster|1988|p=21}} The [[racial policy of Nazi Germany]] portrayed the Soviet Union (and all of Eastern Europe) as populated by non-Aryan {{lang|de|[[Untermenschen]]}} ('sub-humans'), ruled by [[Jewish Bolshevism|Jewish Bolshevik]] conspirators.{{sfn|Hillgruber|1972|p=140}} Hitler claimed in ''Mein Kampf'' that Germany's destiny was to "[[Drang nach Osten|turn to the East]]" as it did "six hundred years ago" (see {{lang|de|[[Ostsiedlung]]}}).{{sfn|Shirer|1990|p=716}} Accordingly, it was a partially secret but well-documented Nazi policy to kill, deport, or enslave the majority of Russian and other Slavic populations and repopulate the land with Germanic peoples, under the [[Generalplan Ost]].{{sfn|Stackelberg|2007|p=271}} The Nazis' belief in their ethnic superiority pervades official records and [[pseudoscientific]] articles in German periodicals, on topics such as "how to deal with alien populations".{{sfn|Fahlbusch|1999|pp=241–264}}
[[File:Generalplan Ost-en.svg|thumb|200px|Plan of new German settlement colonies (marked with dots and diamonds), drawn up by the [[Humboldt University of Berlin|Friedrich Wilhelm University]] Institute of Agriculture in Berlin, 1942]]
While older histories tended to emphasize the [[myth of the clean Wehrmacht|myth of the "clean ''Wehrmacht''"]], upholding its honor in the face of Hitler's fanaticism, the historian [[Jürgen Förster]] notes that "In fact, the military commanders were caught up in the ideological character of the conflict, and involved in its implementation as willing participants."{{sfn|Förster|1988|p=21}} Before and during the invasion of the Soviet Union, German troops were heavily indoctrinated with [[Anti-Sovietism|anti-Bolshevik]], [[anti-Semitic]], and [[anti-Slavic]] ideology via movies, radio, lectures, books, and leaflets.{{sfn|Evans|1989|p=59}} Likening the Soviets to the forces of [[Genghis Khan]], Hitler told [[Croatia]]n military leader [[Slavko Kvaternik]] that the "Mongolian race" threatened Europe.{{sfn|Breitman|1990|pp=340–341}} Following the invasion, many ''Wehrmacht'' officers told their soldiers to target people who were described as "Jewish Bolshevik subhumans", the "Mongol hordes", the "Asiatic flood", and the "Red beast".{{sfn|Evans|1989|pp=59–60}} Nazi propaganda portrayed the war against the Soviet Union as both an ideological war between German National Socialism and Jewish Bolshevism, and a racial war between the disciplined Germans and the Jewish, Romani, and Slavic {{lang|de|Untermenschen}}.{{sfn|Burleigh|2000|p=512}} An 'order from the Führer' stated that the paramilitary SS {{lang|de|[[Einsatzgruppen]]}}, which closely followed the ''Wehrmacht''{{'}}s advance, were to execute all Soviet functionaries who were "less valuable Asiatics, Gypsies and Jews".{{sfn|Burleigh|Wippermann|1991|p=100}} Six months into the invasion of the Soviet Union, the {{lang|de|Einsatzgruppen}} had already murdered in excess of 500,000 Soviet Jews, a figure greater than the number of Red Army soldiers killed in combat during that time.{{sfn|Lewy|2017|p=24}} German army commanders cast the Jews as the major cause behind the "[[Partisan (military)|partisan]] struggle".{{sfn|Kershaw|2001|p=466}} The main guideline for German troops was "Where there's a partisan, there's a Jew, and where there's a Jew, there's a partisan", or "The partisan is where the Jew is".{{sfn|Kershaw|2001|p=467}}{{sfn|Förster|1988|p=28}} Many German troops viewed the war in Nazi terms and regarded their Soviet enemies as sub-human.{{sfn|Förster|2005|p=127}}

After the war began, the Nazis issued a ban on sexual relations between Germans and foreign slave workers.{{sfn|Majer|2003|p=180}} There were regulations enacted against the {{lang|de|[[Ost-Arbeiter]]}} ('Eastern workers') that included the death penalty for sexual relations with a German.{{sfn|Gellately|1990|p=224}} [[Heinrich Himmler]], in his secret memorandum, ''Reflections on the Treatment of Peoples of Alien Races in the East'' (dated 25 May 1940), outlined the Nazi plans for the non-German populations in the East.{{sfn|Himmler|1940|pp=147–150}} Himmler believed the [[Germanization]] process in Eastern Europe would be complete when "in the East dwell only men with truly German, Germanic blood".{{sfn|Mazower|2009|p=181}}

[[File:Bundesarchiv Bild 183-B01718, Ausstellung "Planung und Aufbau im Osten".jpg|thumb|left|Heinrich Himmler, [[Rudolf Hess]], and [[Reinhard Heydrich]] listening to [[Konrad Meyer]] at a {{lang|de|[[Generalplan Ost]]}} exhibition, 20 March 1941]]
The Nazi secret plan {{lang|de|[[Generalplan Ost]]}} ('General Plan for the East'), prepared in 1941 and confirmed in 1942, called for a "new order of ethnographical relations" in the territories occupied by Nazi Germany in Eastern Europe. It envisaged [[ethnic cleansing]], executions, and enslavement of the populations of conquered countries, with very small percentages undergoing Germanization, expulsion into the depths of Russia, or other fates, while the conquered territories would be Germanized. The plan had two parts: the {{lang|de|[[Kleine Planung]]}} ('small plan'), which covered actions to be taken during the war, and the {{lang|de|[[Große Planung]]}} ('large plan'), which covered policies after the war was won, to be implemented gradually over 25 to 30 years.{{sfn|Rössler|Schleiermacher|1996|pp=270–274}}

A speech given by General [[Erich Hoepner]] demonstrates the dissemination of the Nazi racial plan, as he informed the [[4th Panzer Group]] that the war against the Soviet Union was "an essential part of the German people's struggle for existence" ({{lang|de|Daseinskampf}}), also referring to the imminent battle as the "old struggle of Germans against Slavs" and even stated, "the struggle must aim at the annihilation of today's Russia and must, therefore, be waged with unparalleled harshness".{{sfn|Ingrao|2013|p=140}} Hoepner also added that the Germans were fighting for "the defense of European culture against Moscovite–Asiatic inundation, and the repulse of Jewish Bolshevism&nbsp;... No adherents of the present Russian-Bolshevik system are to be spared." [[Walther von Brauchitsch]] also told his subordinates that troops should view the war as a "struggle between two different races and [should] act with the necessary severity".{{sfn|Förster|1988|p=23}} Racial motivations were central to Nazi ideology and played a key role in planning for Operation Barbarossa since both [[Jewish Bolshevism|Jews and communists]] were considered equivalent enemies of the Nazi state. Nazi imperialist ambitions rejected the common humanity of both groups,{{sfn|Ingrao|2013|pp=138–142}} declaring the supreme struggle for {{lang|de|Lebensraum}} to be a {{lang|de|[[Vernichtungskrieg]]}} ('war of annihilation').{{sfn|Förster|1988|p=21}}

===German-Soviet relations of 1939–40===
{{Main|Germany–Soviet Union relations, 1918–1941}}
[[File:Europe before Operation Barbarossa, 1941 (in German).png|thumb|The geopolitical disposition of Europe in 1941, immediately before the start of Operation Barbarossa. The grey area represents Nazi Germany, its allies, and countries under its control.]]

In August 1939, Germany and the Soviet Union signed a non-aggression pact in Moscow known as the [[Molotov–Ribbentrop Pact]]. A secret protocol to the pact outlined an agreement between Germany and the Soviet Union on the division of the eastern European [[Border states (Eastern Europe)|border states]] between their respective "[[spheres of influence]]": the Soviet Union and Germany would partition Poland in the event of an invasion by Germany, and the Soviets would be allowed to overrun the Baltic states and [[Finland]].{{sfn|Kirby|1980|p=120}} On 23 August 1939 the rest of the world learned of this pact but were unaware of the provisions to partition Poland.{{sfn|Hildebrand|1973|p=89}} The pact stunned the world because of the parties' earlier mutual hostility and their conflicting [[Ideology|ideologies]].{{sfn|Roberts|2006|p=30}} The conclusion of this pact was followed by the [[German invasion of Poland]] on 1 September that triggered the outbreak of [[World War II in Europe]], then the [[Soviet invasion of Poland]] that led to the annexation of the eastern part of the country.{{sfn|Bellamy|2007|pp=56–59}} As a result of the pact, Germany and the Soviet Union maintained reasonably strong diplomatic relations for two years and fostered [[Nazi–Soviet economic relations (1934–41)|an important economic relationship]]. The countries entered a [[German-Soviet Commercial Agreement (1940)|trade pact in 1940]] by which the Soviets received German military equipment and trade goods in exchange for raw materials, such as oil and wheat, to help the Nazis [[war effort]] by circumventing the British [[Blockade of Germany (1939–45)|blockade of Germany]].{{sfn|Shirer|1990|pp=668–669}}

Despite the parties' ostensibly cordial relations, each side was highly suspicious of the other's intentions. For instance, the Soviet invasion of [[Bukovina]] in June 1940 went beyond their sphere of influence as agreed with Germany.{{sfn|Brackman|2001|p=341}} After Germany entered the [[Tripartite Pact|Axis Pact]] with Japan and Italy, it began [[German–Soviet Axis talks|negotiations about a potential Soviet entry into the pact]].{{sfn|Roberts|2006|p=57}} After two days of negotiations in Berlin from 12 to 14 November 1940, Germany presented a written proposal for a Soviet entry into the Axis. On 25 November 1940, the Soviet Union offered a written counter-proposal to join the Axis if Germany would agree to refrain from interference in the Soviet Union's sphere of influence, but Germany did not respond.{{sfn|Roberts|2006|p=57}} As both sides began colliding with each other in Eastern Europe, conflict appeared more likely, although they did sign a [[German–Soviet Border and Commercial Agreement|border and commercial agreement]] addressing several open issues in January 1941. According to historian [[Robert Service (historian)|Robert Service]], [[Joseph Stalin]] was convinced that the overall military strength of the USSR was such that he had nothing to fear and anticipated an easy victory should Germany attack; moreover, Stalin believed that since the Germans were still fighting the British in the west, Hitler would be unlikely to open up a two front war and subsequently delayed the reconstruction of defensive fortifications in the border regions.{{sfn|Service|2005|p=259}} When German soldiers swam across the [[Bug River]] to warn the [[Red Army]] of an impending attack, they were treated like enemy agents and shot.{{sfn|Service|2005|pp=259–260}} Some historians{{Who|date=June 2017}} believe that Stalin, despite providing an amicable front to Hitler, did not wish to remain allies with Germany. Rather, Stalin might have had intentions to break off from Germany and proceed with his own campaign against Germany to be followed by one against the rest of Europe.{{sfn|Weeks|2002|p=98}}

===German invasion plans===
{{See also|A-A line|Ural Mountains in Nazi planning|Lossberg study}}
[[File:Marcks Plan for Operation Barbarossa.jpg|thumb|The [[Erich Marcks|Marcks Plan]] was the original German plan of attack for Operation Barbarossa, as depicted in a US Government study (March 1955).]]

Stalin's reputation as a brutal dictator contributed both to the Nazis' justification of their assault and their faith in success; many competent and experienced military officers had been killed in the [[Great Purge]] of the 1930s, leaving the Red Army with a relatively inexperienced leadership compared to that of their German adversary. The Nazis often emphasized the Soviet regime's brutality when targeting the Slavs with propaganda.{{sfn|Hartmann|2013|pp=9–24}} They also claimed that the Red Army was [[Soviet offensive plans controversy|preparing to attack the Germans]], and their own invasion was thus presented as a [[pre-emptive war|pre-emptive]] strike.{{sfn|Hartmann|2013|pp=9–24}}

In the middle of 1940, following the rising tension between the Soviet Union and Germany over territories in the Balkans, an eventual invasion of the Soviet Union seemed the only solution to Hitler.{{sfn|Ericson|1999|p=127}} While no concrete plans had yet been made, Hitler told one of his generals in June that the victories in Western Europe finally freed his hands for a showdown with Bolshevism.{{sfn|Ericson|1999|pp=129–130}} With the successful end to the [[Battle of France|campaign in France]], General [[Erich Marcks]] was assigned the task of drawing up the initial invasion plans of the [[Soviet Union]]. The first battle plans were entitled ''Operation Draft East'' (colloquially known as the ''Marcks Plan'').{{sfn|Kay|2006|p=31}} His report advocated the [[A-A line]] as the operational objective of any invasion of the Soviet Union. This assault would extend from the northern city of [[Arkhangelsk]] on the [[Arctic Sea]] through [[Nizhny Novgorod|Gorky]] and [[Rostov-on-Don|Rostov]] to the port city of [[Astrakhan]] at the mouth of the [[Volga]] on the [[Caspian Sea]]. The report concluded that—once established—this military border would reduce the threat to Germany from attacks by enemy [[bombers]].{{sfn|Kay|2006|p=31}}

Although Hitler was warned by his general staff that occupying "Western Russia" would create "more of a drain than a relief for Germany's economic situation", he anticipated compensatory benefits, such as the [[demobilization]] of entire divisions to relieve the acute [[labor shortage]] in German industry; the exploitation of [[Ukraine]] as a reliable and immense source of agricultural products; the use of [[forced labor]] to stimulate Germany's overall economy; and the expansion of territory to improve Germany's efforts to isolate the United Kingdom.{{sfn|Roberts|2011|pp=147–148}} Hitler was convinced that Britain would sue for peace once the Germans triumphed in the Soviet Union,{{sfn|Hildebrand|1973|p=105}} and if they did not, he would use the resources available in the East to defeat the [[British Empire]].{{sfn|Overy|1996|p=60}}

{{quote box |width = 22em |quote = We only have to kick in the door and the whole rotten structure will come crashing down.{{sfn|Hardesty|2012|p=6}}|source = —Adolf Hitler}}
On 5 December 1940, Hitler received the final military plans for the invasion on which the [[Oberkommando der Wehrmacht|German High Command]] had been working since July 1940 under the codename "Operation Otto". Hitler, however, was dissatisfied with these plans and on 18 December issued [[s:Führer Directive 21|Führer Directive 21]],{{Efn|The first sentence of Directive 21 read, "The German Wehrmacht must be prepared to crush Soviet Russia in a quick campaign even before the end of the war against England."{{sfn|Hartmann|2013|p=13}} }} which called for a new battle plan, now code-named "Operation Barbarossa".{{sfn|Fritz|2011|p=51}} The operation was named after medieval Emperor [[Frederick Barbarossa]] of the [[Holy Roman Empire]], a leader of the [[Third Crusade]] in the 12th century.{{sfn|Stackelberg|2007|p=258}}
On 30 March 1941 the [[Barbarossa decree]] declared that the war would be one of extermination and advocated the eradication of all political and intellectual elites.{{sfn|Chickering|Förster|Greiner|2005|pp=328–330}}
The invasion was set for 15 May 1941, though it was delayed for over a month to allow for further preparations and possibly better weather.{{sfn|Bradley|Buell|2002|p=page 101}} (See [[#Reasons for delay|Reasons for delay]].)

According to a 1978 essay by German historian [[Andreas Hillgruber]], the invasion plans drawn up by the German military elite were coloured by hubris stemming from the rapid defeat of France at the hands of the "invincible" ''Wehrmacht'' and by traditional German stereotypes of Russia as a primitive, backward "Asiatic" country.{{Efn|It is additionally important that considerable portions of the German General Staff thought of Russia as a "colossus of clay" which was "politically unstable, filled with discontented minorities, ineffectively ruled, and militarily weak."{{sfn|Megargee|2000|p=110}} }} Red Army soldiers were considered brave and tough, but the officer corps was held in contempt. The leadership of the ''Wehrmacht'' paid little attention to politics, culture, and the considerable industrial capacity of the Soviet Union, in favour of a very narrow military view.{{sfn|Wette|2007|pp=21–22}} Hillgruber argued that because these assumptions were shared by the entire military elite, Hitler was able to push through with a "war of annihilation" that would be waged in the most inhumane fashion possible with the complicity of "several military leaders", even though it was quite clear that this would be in violation of all accepted norms of warfare.{{sfn|Wette|2007|pp=21–22}}

In autumn 1940, high-ranking German officials drafted a memorandum on the dangers of an invasion of the Soviet Union. They said Ukraine, Belorussia, and the Baltic States would end up as only a further economic burden for Germany.{{sfn|Gorodetsky|2001|pp=69–70}} It was argued that the Soviets in their current bureaucratic form were harmless and that the occupation would not benefit Germany.{{sfn|Gorodetsky|2001|pp=69–70}} Hitler disagreed with economists about the risks and told his right-hand man [[Hermann Göring]], the chief of the ''Luftwaffe'', that he would no longer listen to misgivings about the economic dangers of a war with Russia.{{sfn|Ericson|1999|p=162}} It is speculated that this was passed on to General [[Georg Thomas]], who had produced reports that predicted a net economic drain for Germany in the event of an invasion of the Soviet Union unless its economy was captured intact and the Caucasus oilfields seized in the first blow; Thomas revised his future report to fit Hitler's wishes.{{sfn|Ericson|1999|p=162}} The [[Red Army]]'s ineptitude in the [[Winter War]] against Finland in 1939–40 convinced Hitler of a quick victory within a few months. Neither Hitler nor the General Staff anticipated a long campaign lasting into the winter, and therefore adequate preparations, such as the distribution of warm clothing and [[winterization]] of vehicles and lubricants, were not made.{{sfn|Palmer|2010|pp=187–188}}

Beginning in March 1941, [[Göring's Green Folder]] laid out details for the Soviet economy after conquest. The [[Hunger Plan]] outlined how entire urban populations of conquered territories were to be starved to death, thus creating an agricultural surplus to feed Germany and urban space for the German upper class.{{sfn|Patterson|2003|p=562}} Nazi policy aimed to destroy the Soviet Union as a political entity in accordance with the [[geopolitics|geopolitical]] {{lang|de|Lebensraum}} ideals for the benefit of future generations of the "[[Nordicism|Nordic]] [[master race]]".{{sfn|Hartmann|2013|pp=9–24}} In 1941, Nazi ideologue [[Alfred Rosenberg]]—later appointed Reich Minister of the Occupied Eastern Territories—suggested that conquered Soviet territory should be administered in the following {{lang|de|[[Reichskommissar]]iate}} ('Reich Commissionerships'):

{|width="100%" class="wikitable"
|-
|+Administrative subdivisions of conquered Soviet territory<br />as envisaged, and then partially realized, by Alfred Rosenberg{{sfn|Handrack|1981|p=40}}{{sfn|Klemann|Kudryashov|2012|p=33}}
|-
! style="width:34%;" |Name
! Note
! style="width:11%;" |Map
|-
! scope="row" |{{left|{{lang|de|[[Reichskommissariat Ostland]]}}}}
|[[Baltic countries]] and [[Belarus]]
|{{center|[[File:Reichskommissariat Ostland (1942).svg|65px]]}}
|-
! scope="row" |{{left|{{lang|de|[[Reichskommissariat Ukraine]]}}}}
|[[Ukraine]], enlarged eastwards to the [[Volga]]
|{{center|[[File:Reichskommissariat Ukraine (1942).svg|65px]]}}
|-
! scope="row" |{{left|{{lang|de|[[Reichskommissariat Kaukasus]]}}}}
|[[North Caucasus|Southern Russia]] and the [[Caucasus]] region
|{{center|Unrealized}}
|-
! scope="row" |{{left|{{lang|de|[[Reichskommissariat Moskowien]]}}}}
|[[Moscow metropolitan area]] and remaining [[European Russia]]
|{{center|Unrealized}}
|-
! scope="row" |{{left|{{lang|de|[[Reichskommissariat Turkestan]]}}}}
|[[Soviet Central Asia|Central Asian republics]] and territories
|{{center|Unrealized}}
|-
|}

German military planners also researched [[French invasion of Russia|Napoleon's failed invasion of Russia]]. In their calculations, they concluded that there was little danger of a large-scale retreat of the Red Army into the Russian interior, as it could not afford to give up the Baltic states, Ukraine, or the Moscow and Leningrad regions, all of which were vital to the Red Army for supply reasons and would thus, have to be defended.{{sfn|Rich|1973|p=212}} Hitler and his generals disagreed on where Germany should focus its energy.{{sfn|Megargee|2000|pp=131–134}}{{sfn|Seaton|1972|pp=59–63}} Hitler, in many discussions with his generals, repeated his order of "Leningrad first, the [[Donbas]] second, Moscow third";{{sfn|Higgins|1966|pp=11–59}} but he consistently emphasized the destruction of the Red Army over the achievement of specific terrain objectives.{{sfn|Glantz|2010a|p=18}} Hitler believed Moscow to be of "no great importance" in the defeat of the Soviet Union{{Efn|Concerning this strategic mistake, historian David Stone asserts that, "If Hitler's decision to invade Russia in 1941 was his greatest single error of judgement, then his subsequent decision not to strike hard and fast against Moscow was surely a close second."{{sfn|Stone|2011|p=195}} }} and instead believed victory would come with the destruction of the Red Army west of the capital, especially west of the [[Daugava (river)|Western Dvina]] and [[Dnieper River|Dnieper]] rivers, and this pervaded the plan for Barbarossa.{{sfn|Glantz|2010b|pp=19, 60}}{{sfn|Clark|2012|p=72}} This belief later led to disputes between Hitler and several German senior officers, including [[Heinz Guderian]], [[Gerhard Engel]], [[Fedor von Bock]] and [[Franz Halder]], who believed the decisive victory could only be delivered at Moscow.{{sfn|Glantz|2010b|pp=55–60}} They were unable to sway Hitler, who had grown overconfident in his own military judgment as a result of the rapid successes in Western Europe.{{sfn|Seaton|1972|pp=32–36}}

==German preparations==
[[File:Wehrmacht Panzergruppe 3 пад Пружанай 1941.gif|thumb|left|Elements of the German [[3rd Panzer Army]] on the road near [[Pruzhany]], June 1941]]

The Germans had begun massing troops near the Soviet border even before the [[Balkans Campaign (World War II)|campaign in the Balkans]] had finished. By the third week of February 1941, 680,000 German soldiers were gathered in assembly areas on the Romanian-Soviet border.{{sfn|Shirer|1990|p=822}} In preparation for the attack, Hitler had secretly moved upwards of 3 million German troops and approximately 690,000 Axis soldiers to the Soviet border regions.{{sfn|Müller|2016|p=175}} Additional ''Luftwaffe'' operations included numerous [[Reconnaissance|aerial surveillance]] missions over Soviet territory many months before the attack.{{sfn|Bergström|2007|p=12}}

Although the Soviet High Command was alarmed by this, Stalin's belief that Nazi Germany was unlikely to attack only two years after signing the [[Molotov–Ribbentrop Pact]] resulted in a slow Soviet preparation.{{sfn|Hastings|2012|p=141}} This fact aside, the Soviets did not entirely overlook the threat of their German neighbor. Well before the German invasion, Marshal [[Semyon Timoshenko]] referred to the Germans as the Soviet Union's "most important and strongest enemy", and as early as July 1940, the Red Army Chief of Staff, [[Boris Shaposhnikov]], produced a preliminary three-pronged plan of attack for what a German invasion might look like, remarkably similar to the actual attack.{{sfn|Overy|2006|pp=490–491}} Since April 1941, the Germans had begun setting up [[Operation Haifisch]] and [[Operation Harpune]] to substantiate their claims that Britain was the real target. These simulated preparations in [[Norway]] and the [[English Channel]] coast included activities such as ship concentrations, reconnaissance flights and training exercises.{{sfn|Ziemke|1959|p=138}}

{{anchor|Reasons for delay}}The reasons for the postponement of Barbarossa from the initially planned date of 15 May to the actual invasion date of 22 June 1941 (a 38-day delay) are debated. The reason most commonly cited is the unforeseen contingency of [[Invasion of Yugoslavia|invading Yugoslavia]] and [[Battle of Greece|Greece]] in April 1941.{{sfn|Middleton|1981}} Historian Thomas B. Buell indicates that Finland and Romania, which weren't involved in initial German planning, needed additional time to prepare to participate in the invasion. Buell adds that an unusually wet winter kept rivers at full flood until late spring.{{sfn|Bradley|Buell|2002|p=page 101}}{{Efn|Flooding was so bad that Guderian wrote: "The Balkans Campaign had been concluded with all the speed desired, and the troops there engaged which were now needed for Russia were withdrawn according to plan and very fast. But all the same there was a definite delay in the opening of our Russian Campaign. Furthermore we had had a very wet spring; the Bug and its tributaries were at flood level until well into May and the nearby ground was swampy and almost impassable."{{sfn|Guderian|2002|p=145}} }} The floods may have discouraged an earlier attack, even if they occurred before the end of the Balkans Campaign.<ref>{{harvnb|Bradley|Buell|2002|pp=35–40}}; {{harvnb|Hillgruber|1965|pp=506–507}}; {{harvnb|Vogel|1995|p=483}}; {{harvnb|Stahel|2009|p=140}}</ref>{{Efn|Guderian wrote: "A delay was almost certainly inevitable given that the late spring thaw had swelled and in some cases flooded the major waterways, impeding mobile operations over the sodden ground."{{sfn|Guderian|2002|p=145}} Blumentritt: "...&nbsp;the ground was soft and boggy and the roads were covered with mud. Normally May brought a change of conditions; the water receded and movement was less hampered. But 1941 was an exceptional year, and at the end of June the Bug, a Polish river near Brest-Litovsk, was still overflowing its banks."{{sfn|Blumentritt|1952|p=101}}}}

[[File:Hitler and von Brauchitsch 1941.jpg|thumb|upright|[[OKH]] commander Field Marshal [[Walther von Brauchitsch]] and Hitler study maps during the early days of Hitler's Russian Campaign]]

The importance of the delay is still debated. [[William Shirer]] argued that Hitler's Balkan Campaign had delayed the commencement of Barbarossa by several weeks and thereby jeopardized it.{{sfn|Shirer|1990|pp=829–830}} Many later historians argue that the 22 June start date was sufficient for the German offensive to reach Moscow by September.{{sfn|Bradley|Buell|2002|pp=35–40}}{{sfn|Forczyk|2006|p=44}}{{sfn|Stockings|Hancock|2013|pp=581–84}}{{sfn|Hooker|1999}} [[Antony Beevor]] wrote in 2012 about the delay caused by German attacks in the Balkans that "most [historians] accept that it made little difference" to the eventual outcome of Barbarossa.{{sfn|Beevor|2012|p=158}}

The Germans deployed one independent regiment, one separate motorized training brigade and 153 divisions for Barbarossa, which included 104 infantry, 19 [[panzer]] and 15 [[motorized infantry]] divisions in three army groups, nine [[Security Division (Wehrmacht)|security divisions]] to operate in conquered territories, four divisions in Finland{{Efn|For the Finnish President, [[Risto Ryti]], the attack against the Soviet Union was part of the struggle against Bolshevism and one of Finland's "traditional enemies". {{sfn|Menger|1997|p=532}} }} and two divisions as reserve under the direct control of [[OKH]].{{sfn|Glantz|2010a|pp=20, 34}} These were equipped with 6,867 armored vehicles, of which 3,350–3,795 were tanks, 2,770–4,389 aircraft (that amounted to 65 percent of the ''Luftwaffe''), 7,200–23,435 artillery pieces, 17,081 mortars, about 600,000 motor vehicles and 625,000–700,000 horses.{{sfn|Glantz|2010a|pp=20, 25}}{{sfn|Clark|2012|pp=73–74}}{{sfn|Liedtke|2016|p=220}}{{sfn|Bergström|2007|p=129}}{{sfn|Askey|2014|p=80}} Finland slated 14 divisions for the invasion, and Romania offered 13 divisions and eight brigades over the course of Barbarossa.{{sfn|Glantz|2010a|p=20}} The entire Axis forces, 3.8&nbsp;million personnel,{{sfn|Glantz|2001|p=9}} deployed across a front extending from the Arctic Ocean southward to the [[Black Sea]],{{sfn|Glantz|2010a|p=18}} were all controlled by the OKH and organized into [[Army Norway (Wehrmacht)|Army Norway]], [[Army Group North]], [[Army Group Center]] and [[Army Group South]], alongside three [[luftflotte|''Luftflotten'']] (air fleets, the air force equivalent of army groups) that supported the army groups: [[Luftflotte 1]] for North, [[Luftflotte 2]] for Center and [[Luftflotte 4]] for South.{{sfn|Glantz|2010a|p=20}}

Army Norway was to operate in far northern [[Scandinavia]] and [[Northwest Russia|bordering Soviet territories]].{{sfn|Glantz|2010a|p=20}} Army Group North was to march through the [[Baltic states]] into northern Russia, either take or destroy the city of [[Leningrad]] and link up with Finnish forces.{{sfn|Glantz|2012|p=36}}{{sfn|Higgins|1966|pp=11–59}} Army Group Center, the army group equipped with the most armour and air power,{{sfn|Glantz|2012|p=14}} was to strike from Poland into [[Belorussia]] and the west-central regions of Russia proper, and advance to [[Smolensk]] and then Moscow.{{sfn|Higgins|1966|pp=11–59}} Army Group South was to strike the heavily populated and agricultural heartland of [[Ukraine]], taking [[Kiev]] before continuing eastward over the [[steppe]]s of southern USSR to the [[Volga]] with the aim of controlling the oil-rich [[Caucasus]].{{sfn|Higgins|1966|pp=11–59}} Army Group South was deployed in two sections separated by a {{convert|198|mi|km|adj=on}} gap. The northern section, which contained the army group's only panzer group, was in southern Poland right next to Army Group Center, and the southern section was in Romania.{{sfn|Glantz|2012|p=40}}

The German forces in the rear (mostly {{lang|de|[[Waffen-SS]]}} and {{lang|de|Einsatzgruppen}} units) were to operate in conquered territories to counter any [[Soviet partisans|partisan]] activity in areas they controlled, as well as to [[Commissar Order|execute captured Soviet political commissars]] and Jews.{{sfn|Hartmann|2013|pp=9–24}} On 17 June, [[Reich Security Main Office]] (RSHA) chief [[Reinhard Heydrich]] briefed around thirty to fifty {{lang|de|Einsatzgruppen}} commanders on "the policy of eliminating Jews in Soviet territories, at least in general terms".{{sfn|Breitman|1991|p=434}} While the {{lang|de|Einsatzgruppen}} were assigned to the ''Wehrmacht''{{'}}s units, which provided them with supplies such as gasoline and food, they were controlled by the RSHA.{{sfn|Hilberg|1961|pp=177–183}} The official plan for Barbarossa assumed that the army groups would be able to advance freely to their primary objectives simultaneously, without spreading thin, once they had won the border battles and destroyed the Red Army's forces in the border area.{{sfn|Glantz|2010a|p=21}}

==Soviet preparations==
{{see also|Soviet offensive plans controversy}}
{{see also|2006 Soviet war documents declassification}}
In 1930, [[Mikhail Tukhachevsky]], a prominent military theorist in [[armoured warfare|tank warfare]] in the [[interwar period]] and later [[Marshal of the Soviet Union]], forwarded a memo to the Kremlin that lobbied for colossal investment in the resources required for the mass production of weapons, pressing the case for "40,000 aircraft and 50,000 tanks".{{sfn|Clark|2012|p=56}} In the early 1930s, a modern operational [[Military doctrine|doctrine]] for the Red Army was developed and promulgated in the 1936 Field Regulations in the form of the [[Soviet deep battle|Deep Battle Concept]]. Defense expenditure also grew rapidly from just 12 percent of the [[gross national product]] in 1933 to 18 percent by 1940.{{sfn|Clark|2012|p=55}}

During Stalin's [[Great Purge]] in the late-1930s, which had not ended by the time of the German invasion on 22 June 1941, much of the officer corps of the Red Army was executed or imprisoned and their replacements, appointed by Stalin for political reasons, often lacked military competence.{{sfn|Glantz|1998|p=26}}{{sfn|Glantz|2012|p=55}}{{sfn|Clark|2012|p=57}} Of the five [[Marshal of the Soviet Union|Marshals of the Soviet Union]] appointed in 1935, only [[Kliment Voroshilov]] and [[Semyon Budyonny]] survived Stalin's purge. Tukhachevsky was killed in 1937. Fifteen of 16 army commanders, 50 of the 57 corps commanders, 154 of the 186 divisional commanders, and 401 of 456 colonels were killed, and many other officers were dismissed.{{sfn|Clark|2012|p=57}} In total, about 30,000 Red Army personnel were executed.{{sfn|Rayfield|2004|p=315}} Stalin further underscored his control by reasserting the role of [[political commissar]]s at the divisional level and below to oversee the political loyalty of the army to the regime. The commissars held a position equal to that of the commander of the unit they were overseeing.{{sfn|Clark|2012|p=57}} But in spite of efforts to ensure the political subservience of the armed forces, in the wake of Red Army's poor performance [[Soviet invasion of Poland|in Poland]] and in the [[Winter War]], about 80 percent of the officers dismissed during the Great Purge were reinstated by 1941. Also, between January 1939 and May 1941, 161 new divisions were activated.{{sfn|Glantz|2012|p=22}}{{sfn|Clark|2012|p=58}} Therefore, although about 75 percent of all the officers had been in their position for less than one year at the start of the German invasion of 1941, many of the short tenures can be attributed not only to the purge but also to the rapid increase in the creation of military units.{{sfn|Clark|2012|p=58}}
[[File:Жуков и Тимошенко, 1940 год.jpg|thumb|upright|[[Semyon Timoshenko]] and [[Georgy Zhukov]] in 1940]]

In the Soviet Union, speaking to his generals in December 1940, Stalin mentioned Hitler's references to an attack on the Soviet Union in ''Mein Kampf'' and Hitler's belief that the Red Army would need four years to ready itself. Stalin declared "we must be ready much earlier" and "we will try to delay the war for another two years".{{sfn|Berthon|Potts|2007|p=47}} As early as August 1940, British intelligence had received hints of German plans to attack the Soviets only a week after Hitler informally approved the plans for ''Barbarossa'' and warned the Soviet Union accordingly.{{sfn|Waller|1996|p=192}} But Stalin's distrust of the British led him to ignore their warnings in the belief that they were a trick designed to bring the Soviet Union into the war on their side.{{sfn|Waller|1996|p=192}}{{sfn|Roberts|1995|p=1293}} In early 1941, Stalin's own [[intelligence service]]s and American intelligence gave regular and repeated warnings of an impending German attack.{{sfn|Waller|1996|pp=196–198}} Soviet spy [[Richard Sorge]] also gave Stalin the exact German launch date, but Sorge and other informers had previously given different invasion dates that passed peacefully before the actual invasion.{{sfn|Roberts|2011|p=155}}{{sfn|Hastings|2016|pp=110–113}} Stalin acknowledged the possibility of an attack in general and therefore made significant preparations, but decided not to run the risk of provoking Hitler.{{sfn|Waller|1996|p=202}}

Beginning in July 1940, the Red Army General Staff developed war plans that identified the ''Wehrmacht'' as the most dangerous threat to the Soviet Union, and that in the case of a war with Germany, the ''Wehrmacht''{{'}}s main attack would come through the region north of the [[Pripyat Marshes]] into Belorussia,{{sfn|Glantz|2012|p=15}}{{sfn|Glantz|2010a|p=21}} which later proved to be correct.{{sfn|Glantz|2012|p=15}} Stalin disagreed, and in October he authorized the development of new plans that assumed a German attack would focus on the region south of Pripyat Marshes towards the economically vital regions in Ukraine. This became the basis for all subsequent Soviet war plans and the deployment of their armed forces in preparation for the German invasion.{{sfn|Glantz|2012|p=15}}{{sfn|Glantz|2010a|pp=21–22}}

[[File:RIAN archive 2410 Marshal Zhukov speaking.jpg|thumb|left|upright|Army general (later Marshal) Zhukov speaking at a military conference in Moscow, September 1941]]

In early-1941 Stalin authorized the State Defense Plan 1941 (DP-41), which along with the Mobilization Plan 1941 (MP-41), called for the deployment of 186 divisions, as the first strategic echelon, in the four [[Military districts of the Soviet Union|military districts]]{{efn|name=western military districts Soviet Union}} of the western Soviet Union that faced the Axis territories; and the deployment of another 51 divisions along the Dvina and Dnieper Rivers as the second strategic echelon under [[Stavka]] control, which in the case of a German invasion was tasked to spearhead a Soviet counteroffensive along with the remaining forces of the first echelon.{{sfn|Glantz|2010a|pp=21–22}} But on 22 June 1941 the first echelon only contained 171 divisions,{{sfn|Glantz|2012|pp=16, 219}} numbering 2.6–2.9&nbsp;million;{{sfn|Glantz|2001|p=9}}{{sfn|Glantz|1998|pp=10–11, 101, 293}}{{sfn|Taylor|1974|p=98}} and the second strategic echelon contained 57 divisions that were still mobilizing, most of which were still understrength.{{sfn|Glantz|2010a|pp=22–23, 51}} The second echelon was undetected by German intelligence until days after the invasion commenced, in most cases only when German ground forces bumped into them.{{sfn|Glantz|2010a|pp=22–23, 51}}

At the start of the invasion, the manpower of the Soviet military force that had been mobilized was 5.3–5.5&nbsp;million,{{sfn|Glantz|2001|p=9}}{{sfn|Glantz|1998|p=293}} and it was still increasing as the Soviet [[military reserve force|reserve force]] of 14 million, with at least basic military training, continued to mobilize.{{sfn|Glantz|1998|p=107}}{{sfn|Glantz|House|1995|p=68}} The Red Army was dispersed and still preparing when the invasion commenced. Their units were often separated and lacked adequate transportation.{{sfn|Sakwa|2005|pp=225–227}} While transportation remained insufficient for Red Army forces, when Operation Barbarossa kicked off, they possessed some 33,000 pieces of artillery, a number far greater than the Germans had at their disposal.{{sfn|Hanson|2017|p=386}}{{efn|Historian [[Victor Davis Hanson]] reports that before the war came to its conclusion, the Soviets had an artillery advantage over the Germans of seven-to-one and that artillery production was the only area where they doubled U.S. and British manufacturing output.{{sfn|Hanson|2017|pp=386–387}} }}

The Soviet Union had some 23,000 tanks available of which only 14,700 were combat-ready.{{sfn|Kirshin|1997|p=385}} Around 11,000 tanks were in the western military districts that faced the German invasion force.{{sfn|Mercatante|2012|p=64}} Hitler later declared to some of his generals, "If I had known about the Russian tank strength in 1941 I would not have attacked".{{sfn|Macksey|1989|p=456}} However, maintenance and readiness standards were very poor; ammunition and radios were in short supply, and many armoured units lacked the trucks for supplies.{{sfn|Seaton|1972|pp=91–93}}{{sfn|Hastings|2012|p=140}} The most advanced Soviet tank models – the [[KV-1]] and [[T-34]] – which were superior to all current German tanks, as well as all designs still in development as of the summer 1941,{{sfn|Glantz|2012|p=23}} were not available in large numbers at the time the invasion commenced.{{sfn|Seaton|1972|p=93}} Furthermore, in the autumn of 1939, the Soviets disbanded their [[Mechanised corps (Soviet Union)|mechanized corps]] and partly dispersed their tanks to infantry divisions;{{sfn|Glantz|1998|p=109}} but following their observation of the German campaign in France, in late-1940 they began to reorganize most of their armored assets back into mechanized corps with a target strength of 1,031 tanks each.{{sfn|Glantz|2012|p=22}} But these large armoured formations were unwieldy, and moreover they were spread out in scattered garrisons, with their subordinate divisions up to {{convert|100|km|abbr=off}} apart.{{sfn|Glantz|2012|p=22}} The reorganization was still in progress and incomplete when Barbarossa commenced.{{sfn|Dunnigan|1978|p=82}}{{sfn|Glantz|1998|p=109}} Soviet tank units were rarely well equipped, and they lacked training and logistical support. Units were sent into combat with no arrangements in place for refueling, ammunition resupply, or personnel replacement. Often, after a single engagement, units were destroyed or rendered ineffective.{{sfn|Sakwa|2005|pp=225–227}} The Soviet numerical advantage in heavy equipment was thoroughly offset by the superior training and organization of the ''Wehrmacht''.{{sfn|Rayfield|2004|p=315}}

The Soviet Air Force ([[Voenno-Vozdushnye Sily|VVS]]) held the numerical advantage with a total of approximately 19,533 aircraft, which made it the largest air force in the world in the summer of 1941.{{sfn|Glantz|2010a|p=28}} About 7,133–9,100 of these were deployed in the five western military districts,{{efn|name=western military districts Soviet Union}}{{sfn|Glantz|2010a|p=28}}{{sfn|Mercatante|2012|p=64}}{{sfn|Clark|2012|p=76}} and an additional 1445 were under naval control.{{sfn|Glantz|1998|p=13}}

{|class="wikitable floatright" style="text-align:right;"
|-
|+Development of the Soviet Armed Forces{{sfn|Meltyukhov|2000}}
|-
!
!1 January 1939
!22 June 1941
!Increase
|-
|Divisions calculated ||131.5 ||316.5 ||140.7%
|-
|Personnel ||2,485,000 ||5,774,000 ||132.4%
|-
|Guns and mortars ||55,800 ||117,600 ||110.7%
|-
|Tanks ||21,100 ||25,700 ||21.8%
|-
|Aircraft ||7,700 ||18,700 ||142.8%
|}

[[Soviet offensive plans controversy|Historians have debated]] whether Stalin was planning an invasion of German territory in the summer of 1941. The debate began in the late-1980s when [[Viktor Suvorov]] published a journal article and later the book ''[[Icebreaker (Suvorov)|Icebreaker]]'' in which he claimed that Stalin had seen the outbreak of war in Western Europe as an opportunity to spread communist revolutions throughout the continent, and that the Soviet military was being deployed for an imminent attack at the time of the German invasion.{{sfn|Uldricks|1999|pp=626–627}} This view had also been advanced by former German generals following the war.{{sfn|Smelser|Davies|2008|p=243}} Suvorov's thesis was fully or partially accepted by a limited number of historians, including [[Valeri Danilov]], [[Joachim Hoffmann]], [[Mikhail Meltyukhov]], and [[Vladimir Nevezhin]], and attracted public attention in Germany, Israel, and Russia.{{sfn|Uldricks|1999|pp=631, 633, 636}}{{sfn|Bar-Joseph|Levy|2009|p=476}} It has been strongly rejected by most historians,{{sfn|Uldricks|1999|p=630}}{{sfn|Humpert|2005|p=72}} and ''Icebreaker'' is generally considered to be an "anti-Soviet tract" in Western countries.{{sfn|Roberts|1995|p=1326}} [[David Glantz]] and [[Gabriel Gorodetsky]] wrote books to rebut Suvorov's arguments.{{sfn|Mawdsley|2003|pp=819–820}} The majority of historians believe that Stalin was seeking to avoid war in 1941, as he believed that his military was not ready to fight the German forces.{{sfn|Bar-Joseph|Levy|2009|p=477}} The debate on whether Stalin intended to launch offensive against Germany in 1941 remains inconclusive but has produced an abundance of scholarly literature and helped to expand the understanding of larger themes in Soviet and world history during the interwar period.{{sfn|Kshyk|2015}}

==Order of battle==
{{main|Order of battle for Operation Barbarossa}}

{|class="wikitable" style="font-size:95%; width:100%"
|-
|+Order of battle – June 1941{{sfn|Kirchubel|2005|p=26,29}}{{sfn|Kirchubel|2003|p=31}}{{sfn|Kirchubel|2007|p=31}}{{sfn|Glantz|2012|pp=290–303}}
|-
! scope="col" |Axis forces
! scope="col" |Soviet Forces{{efn|name=western military districts Soviet Union}}
|-
|valign="top" |
'''Northern Theatre'''{{sfn|Glantz|2012|pp=290–303}}{{sfn|Kirchubel|2005|p=26}}
* [[Army Norway (Wehrmacht)|Army of Norway]]
* [[Army of Karelia]]

'''[[Army Group North]]'''{{sfn|Kirchubel|2005|p=26}}{{sfn|Glantz|2012|pp=290–303}}
* [[18th Army (Wehrmacht)|18th Army]]
* [[4th Panzer Group]]
* [[16th Army (Wehrmacht)|16th Army]]
* [[Luftflotte 1|Air Fleet 1]]

'''[[Army Group Centre|Army Group Center]]'''{{sfn|Kirchubel|2007|p=31}}{{sfn|Glantz|2012|pp=290–303}}
* [[3rd Panzer Group]]
* [[9th Army (Wehrmacht)|9th Army]]
* [[4th Army (Wehrmacht)|4th Army]]
* [[2nd Panzer Group]]
* [[Luftflotte 2|Air Fleet 2]]

'''[[Army Group South]]'''{{sfn|Kirchubel|2003|p=31}}{{sfn|Glantz|2012|pp=290–303}}
* [[6th Army (Wehrmacht)|6th Army]]
* [[1st Panzer Group]]
* [[17th Army (Wehrmacht)|17th Army]]
** [[Slovak Republic (1939–1945)#Slovak forces during the campaign against the Soviet Union|Slovak Expeditionary Force]]
** [[Gyorshadtest|Royal Hungarian Army Mobile Corps]]
* [[11th Army (Wehrmacht)|11th Army]]
** [[Italian Expeditionary Corps in Russia]]
* [[Third Army (Romania)|Romanian 3rd Army]]
* [[4th Territorial Army Corps (Romania)|Romanian 4th Army]]
* [[Luftflotte 4|Air Fleet 4]]
|width="55%" |
'''[[Northern Front (Soviet Union)|Northern Front]]'''{{sfn|Kirchubel|2005|p=29}}{{sfn|Glantz|2012|pp=290–303}}
* [[7th Army (Soviet Union)|7th Army]]
* [[14th Army (Soviet Union)|14th Army]]
* [[23rd Army (Soviet Union)|23rd Army]]
** [[10th Mechanized Corps (Soviet Union)|10th Mechanized Corps]]
* [[1st Mechanized Corps (Soviet Union)|1st Mechanized Corps]]
* Northern [[Soviet Air Defence Forces|PVO]]

'''[[North-Western Front]]'''{{sfn|Kirchubel|2007|p=30}}{{sfn|Glantz|2012|pp=290–303}}
* [[27th Army (Soviet Union)|27th Army]]
* [[8th Army (Soviet Union)|8th Army]]
** [[12th Mechanized Corps (Soviet Union)|12th Mechanized Corps]]
* [[11th Army (Soviet Union)|11th Army]]
** [[3rd Mechanized Corps (Soviet Union)|3rd Mechanized Corps]]
* 5th Airborne Corps
* Baltic [[Soviet Air Forces|VVS]]
* [[Northern Fleet]]
* [[Baltic Fleet]]

'''[[Western Front (Soviet Union)|Western Front]]'''{{sfn|Kirchubel|2005|p=31}}{{sfn|Glantz|2012|pp=290–303}}
* [[3rd Army (Soviet Union)|3rd Army]]
** [[11th Mechanized Corps (Soviet Union)|11th Mechanized Corps]]
* [[10th Army (Soviet Union)|10th Army]]
** [[6th Mechanized Corps (Soviet Union)|6th Mechanized Corps]]
** [[13th Mechanized Corps (Soviet Union)|13th Mechanized Corps]]
* [[4th Army (Soviet Union)|4th Army]]
** [[14th Mechanized Corps (Soviet Union)|14th Mechanized Corps]]
* [[13th Army (Soviet Union)|13th Army]]
* [[17th Mechanized Corps (Soviet Union)|17th]] and [[20th Mechanized Corps (Soviet Union)|20th]] Mechanized Corps
* [[2nd Rifle Corps|2nd Rifle]], 21st Rifle, 44th Rifle, 47th Rifle, 50th Rifle and [[4th Airborne Corps (Soviet Union)|4th Airborne]] Corps
* Western [[Soviet Air Forces|VVS]]

'''[[Soviet Southwestern Front|South-Western Front]]'''{{sfn|Kirchubel|2003|p=31}}{{sfn|Glantz|2012|pp=290–303}}
* [[5th Army (Soviet Union)|5th Army]]
** [[9th Mechanized Corps (Soviet Union)|9th Mechanized Corps]]
** 22nd Mechanized Corps
* [[6th Army (Soviet Union)|6th Army]]
** [[4th Mechanized Corps (Soviet Union)|4th Mechanized Corps]]
** 15th Mechanized Corps
* [[26th Army (Soviet Union)|26th Army]]
** [[8th Mechanized Corps (Soviet Union)|8th Mechanized Corps]]
* [[12th Army (Soviet Union)|12th Army]]
** 16th Mechanized Corps
* 31 Rifle, 36th Rifle, 49th Rifle, 55th Rifle and 1st Airborne Corps
* Kiev [[Soviet Air Forces|VVS]]

'''[[Southern Front (Soviet Union)|Southern Front]]'''{{sfn|Kirchubel|2003|p=31}}{{sfn|Glantz|2012|pp=290–303}}
* [[9th Army (Soviet Union)|9th Independent Army]]
** [[2nd Mechanized Corps (Soviet Union)|2nd Mechanized Corps]]
** 18th Mechanized Corps
* 7th Rifle, 9th Rifle and 3rd Airborne Corps
* Odessa [[Soviet Air Forces|VVS]]
* [[Black Sea Fleet]]
----
'''[[Reserve of the Supreme High Command|{{transl|ru|Stavka}} Reserve]] Armies (second strategic echelon)'''{{sfn|Glantz|2012|pp=302–303}}
* [[16th Army (Soviet Union)|16th Army]]
** [[5th Mechanised Corps (Soviet Union)|5th Mechanized Corps]]
* [[19th Army (Soviet Union)|19th Army]]
** [[26th Mechanized Corps (Soviet Union)|26th Mechanized Corps]]
* [[20th Army (Soviet Union)|20th Army]]
** [[7th Mechanized Corps (Soviet Union)|7th Mechanized Corps]]
* [[21st Army (Soviet Union)|21st Army]]
** [[25th Mechanized Corps (Soviet Union)|25th Mechanized Corps]]
* [[22nd Army (Soviet Union)|22nd Army]]
* [[24th Army (Soviet Union)|24th Army]]
* 20th Rifle, 45th Rifle, 67th Rifle and 21st Mechanized Corps.
|-
|'''Total number of Divisions (22 June)'''
|'''Total number of Divisions (22 June)'''
|-
|Total number of German Divisions: 152{{Sfn|Glantz|House|2015|p=365}}
Total number of Romanian Divisions: 14{{Sfn|Glantz|House|2015|p=367}}
|Total number of Soviet Divisions: 220{{Sfn|Glantz|House|2015|p=365}}
|}

==Invasion==
[[File:German troops crossing the Soviet border.jpg|thumb|upright|left|German troops at the Soviet state [[border marker]], 22 June 1941]]

At around 01:00 on 22 June 1941, the Soviet military districts in the border area{{efn|name=western military districts Soviet Union}} were alerted by NKO Directive No. 1, issued late on the night of 21 June.{{sfn|Clark|2012|p=81}} It called on them to "bring all forces to combat readiness," but to "avoid provocative actions of any kind".{{sfn|Glantz|2012|p=287}} It took up to two hours for several of the units subordinate to the Fronts to receive the order of the directive,{{sfn|Glantz|2012|p=287}} and the majority did not receive it before the invasion commenced.{{sfn|Clark|2012|p=81}} A German deserter, [[Alfred Liskow]], had crossed the lines at 21:00 on 21 June{{efn|The [[NKGB]] learned about Liskow only at 03:00 on 22 June.{{sfn|Czak|2014|pp=1, 120}}}} and informed the Soviets that an attack was coming at 04:00. Stalin was informed, but apparently regarded it as disinformation. Liskow was still being interrogated when the attack began.{{sfn|Erickson|1972|pp=526–527}}

On 21 June, at 13:00 Army Group North received the codeword "Düsseldorf", indicating Barbarossa would commence the next morning, and passed down its own codeword, "Dortmund".{{sfn|Kirchubel|2013|p=136}} At around 03:15 on 22 June 1941, the Axis Powers commenced the invasion of the Soviet Union with the bombing of major cities in Soviet-occupied Poland{{sfn|Kirchubel|2007|pp=33–34}} and an artillery barrage on Red Army defences on the entire front.{{sfn|Clark|2012|p=81}} Air-raids were conducted as far as Kronstadt near Leningrad, [[Izmail|Ismail]] in Bessarabia, and Sevastopol in the Crimea. Meanwhile, ground troops crossed the border, accompanied in some locales by Lithuanian and Ukrainian [[fifth column]]ists.{{sfn|Seaton|1972|p=98}} Roughly three million soldiers of the ''Wehrmacht'' went into action and faced slightly fewer Soviet troops at the border.{{sfn|Kirchubel|2007|pp=33–34}} Accompanying the German forces during the initial invasion were Finnish and Romanian units as well.{{sfn|Pohl|2018|p=246}}

At around noon, the news of the invasion was broadcast to the population by Soviet foreign minister [[Vyacheslav Molotov]]: "...&nbsp;Without a declaration of war, German forces fell on our country, attacked our frontiers in many places&nbsp;... The Red Army and the whole nation will wage a victorious Patriotic War for our beloved country, for honour, for liberty&nbsp;... Our cause is just. The enemy will be beaten. Victory will be ours!"{{sfn|Clark|2012|p=70}}{{sfn|Braithwaite|2010|p=74}} By calling upon the population's devotion to their nation rather than the Party, Molotov struck a patriotic chord that helped a stunned people absorb the shattering news.{{sfn|Clark|2012|p=70}} Within the first few days of the invasion, the Soviet High Command and Red Army were extensively reorganized so as to place them on the necessary war footing.{{sfn|Seaton|1972|p=99}} Stalin did not address the nation about the German invasion until 3 July, when he also called for a "Patriotic War... of the entire Soviet people".{{sfn|Clark|2012|p=92}}

In Germany, on the morning of 22 June, Nazi propaganda minister [[Joseph Goebbels]] announced the invasion to the waking nation in a radio broadcast with Hitler's words: "At this moment a march is taking place that, for its extent, compares with the greatest the world has ever seen. I have decided today to place the fate and future of the Reich and our people in the hands of our soldiers. May God aid us, especially in this fight!"{{sfn|Clark|2012|p=82}} Later the same morning, Hitler proclaimed to his colleagues, "Before three months have passed, we shall witness a collapse of Russia, the like of which has never been seen in history."{{sfn|Clark|2012|p=82}} Hitler also addressed the German people via the radio, presenting himself as a man of peace, who reluctantly had to attack the Soviet Union.{{sfn|Hitler|1941}} Following the invasion, Goebbels instructed that Nazi propaganda use the slogan "European crusade against Bolshevism" to describe the war; subsequently thousands of [[Waffen-SS foreign volunteers and conscripts|volunteers and conscripts]] joined the ''Waffen-SS''.{{sfn|Ueberschär|Müller|2008|p=244}}

==Initial attacks==
[[File:Invasion1941.jpg|thumb|upright=1.35|German advances from June to August 1941]]

The initial momentum of the German ground and air attack completely destroyed the Soviet organizational [[command and control]] within the first few hours, paralyzing every level of command from the infantry platoon to the Soviet High Command in Moscow.{{sfn|Glantz|2012|pp=31–33}} Moscow not only failed to grasp the magnitude of the catastrophe that confronted the Soviet forces in the border area, but Stalin's first reaction was also disbelief.{{sfn|Roberts|2011|p=156}} At around 07:15, Stalin issued NKO Directive No. 2, which announced the invasion to the Soviet Armed Forces, and called on them to attack Axis forces wherever they had violated the borders and launch air strikes into the border regions of German territory.{{sfn|Clark|2012|p=83}} At around 09:15, Stalin issued NKO Directive No. 3, signed by Marshal [[Semyon Timoshenko]], which now called for a general counteroffensive on the entire front "without any regards for borders" that both men hoped would sweep the enemy from Soviet territory.{{sfn|Glantz|2010a|p=31}}{{sfn|Glantz|2012|p=287}} Stalin's order, which Timoshenko authorized, was not based on a realistic appraisal of the military situation at hand, but commanders passed it along for fear of retribution if they failed to obey; several days passed before the Soviet leadership became aware of the enormity of the opening defeat.{{sfn|Glantz|2010a|p=31}}

===Air war===
{{Main|Axis and Soviet air operations during Operation Barbarossa}}
''Luftwaffe'' reconnaissance units plotted Soviet troop concentration, supply dumps and airfields, and marked them down for destruction.{{sfn|Askey|2014|p=253}} Additional ''Luftwaffe'' attacks were carried out against Soviet command and control centers to disrupt the mobilization and organization of Soviet forces.{{sfn|Fritz|2011|p=85}}{{sfn|Glantz|2012|p= 51}} In contrast, Soviet artillery observers based at the border area had been under the strictest instructions not to open fire on German aircraft prior to the invasion.{{sfn|Hastings|2012|p=141}} One plausible reason given for the Soviet hesitation to return fire was Stalin's initial belief that the assault was launched without Hitler's authorization. Significant amounts of Soviet territory were lost along with Red Army forces as a result; it took several days before Stalin comprehended the magnitude of the calamity.{{sfn|Fritz|2011|pp=85–86}} The ''Luftwaffe'' reportedly destroyed 1,489 aircraft on the first day of the invasion{{sfn|Bergström|2007|p=20}} and over 3,100 during the first three days.{{sfn|Bergström|2007|p=23}} Hermann Göring, [[Ministry of Aviation (Nazi Germany)|Minister of Aviation]] and [[Oberkommando der Luftwaffe|Commander-in-Chief of the ''Luftwaffe'']], distrusted the reports and ordered the figure checked. ''Luftwaffe'' staffs surveyed the wreckage on Soviet airfields, and their original figure proved conservative, as over 2,000 Soviet aircraft were estimated to have been destroyed on the first day of the invasion.{{sfn|Bergström|2007|p=20}} In reality, Soviet losses were likely higher; a Soviet archival document recorded the loss of 3,922 Soviet aircraft in the first three days against an estimated loss of 78 German aircraft.{{sfn|Bergström|2007|p=23}}{{sfn|Hardesty|2012|p=9}} The ''Luftwaffe'' reported the loss of only 35 aircraft on the first day of combat.{{sfn|Bergström|2007|p=23}} A document from the [[German Federal Archives]] puts the ''Luftwaffe''{{'}}s loss at 63 aircraft for the first day.{{sfn|Hardesty|2012|p=8, 390}}

By the end of the first week, the ''Luftwaffe'' had achieved [[air supremacy]] over the battlefields of all the army groups,{{sfn|Hardesty|2012|p=9}} but was unable to effect this air dominance over the vast expanse of the western Soviet Union.{{sfn|Glantz|2012|p= 19}}{{sfn|Hardesty|2012|p=54}} According to the [[war diary|war diaries]] of the [[OKW|German High Command]], the ''Luftwaffe'' by 5 July had lost 491 aircraft with 316 more damaged, leaving it with only about 70 percent of the strength it had at the start of the invasion.{{sfn|Glantz|2010a|p=54}}

===Baltic states===
{{Main|Baltic Operation}}
[[File:Bundesarchiv Bild 101I-009-0882-04, Russland-Nord, Vormarsch durch Lettland.jpg|thumb|German forces pushing through [[Latvia]], summer 1941]]
On 22 June, Army Group North attacked the Soviet Northwestern Front and broke through its 8th and 11th Armies.{{sfn|Glantz|2012|p=37}} The Soviets immediately launched a [[Battle of Raseiniai|powerful counterattack]] against the German [[4th Panzer Group]] with the Soviet 3rd and 12th Mechanized Corps, but the Soviet attack was defeated.{{sfn|Glantz|2012|p=37}} On 25 June, the 8th and 11th Armies were ordered to withdraw to the Western Dvina River, where it was planned to meet up with the 21st Mechanized Corps and the 22nd and 27th Armies. However, on 26 June, [[Erich von Manstein]]'s LVI Panzer Corps reached the river first and secured a bridgehead across it.{{sfn|Glantz|2012|p=38}} The Northwestern Front was forced to abandon the river defenses, and on 29 June Stavka ordered the Front to withdraw to the [[Stalin Line]] on the approaches to Leningrad.{{sfn|Glantz|2012|p=38}} On 2 July, Army Group North began its attack on the Stalin Line with its 4th Panzer Group, and on 8 July captured [[Pskov]], devastating the defenses of the Stalin Line and reaching [[Leningrad oblast]].{{sfn|Glantz|2012|p=38}} The 4th Panzer Group had advanced about {{convert|450|km|mi}} since the start of the invasion and was now only about {{convert|250|km|mi}} from its primary objective [[Leningrad]]. On 9 July it began its attack towards the Soviet defenses along the [[Luga River]] in Leningrad oblast.{{sfn|Glantz|2012|p=93}}

===Ukraine and Moldavia===
{{See also|Operation München|Battle of Brody (1941)}}
[[File:Bundesarchiv Bild 183-2005-1017-521, Ostfront, -Generaloberst von Kleist besichtigt ein Hüttenwerk in der Ukraine.jpg|thumb|upright|General [[Paul Ludwig Ewald von Kleist|Ewald von Kleist]] (left), commander of the [[1st Panzer Group]], inspects a large iron works facility in Ukraine, 1941]]

The northern section of Army Group South faced the Southwestern Front, which had the largest concentration of Soviet forces, and the southern section faced the Southern Front. In addition, the Pripyat Marshes and the [[Carpathian Mountains]] posed a serious challenge to the army group's northern and southern sections respectively.{{sfn|Fritz|2011|pp=89, 140}} On 22 June, only the northern section of Army Group South attacked, but the terrain impeded their assault, giving the Soviet defenders ample time to react.{{sfn|Fritz|2011|pp=89, 140}} The German [[1st Panzer Group]] and 6th Army attacked and broke through the Soviet 5th Army.{{sfn|Glantz|2012|p=41}} Starting on the night of 23 June, the Soviet 22nd and 15th Mechanized Corps attacked the flanks of the 1st Panzer Group from north and south respectively. Although intended to be concerted, Soviet tank units were sent in piecemeal due to poor coordination. The 22nd Mechanized Corps ran into the 1st Panzer Army's III Motorized Corps and was decimated, and its commander killed. The 1st Panzer Group bypassed much of the 15th Mechanized Corps, which engaged the German 6th Army's 297th Infantry Division, where it was defeated by antitank fire and ''Luftwaffe'' attacks.{{sfn|Glantz|2012|p=42}} On 26 June, the Soviets launched another counterattack on the 1st Panzer Group from north and south simultaneously with the 9th, 19th and 8th Mechanized Corps, which altogether fielded 1649 tanks, and supported by the remnants of the 15th Mechanized Corps. The battle lasted for four days, ending in the defeat of the Soviet tank units.{{sfn|Glantz|2012|pp=43–44, 225}} On 30 June Stavka ordered the remaining forces of the Southwestern Front to withdraw to the Stalin Line, where it would defend the approaches to Kiev.{{sfn|Glantz|2012|pp=21, 43–44}}

On 2 July, the southern section of Army Group South – the Romanian 3rd and 4th Armies, alongside the German 11th Army – invaded [[Moldavian Soviet Socialist Republic|Soviet Moldavia]], which was defended by the Southern Front.{{sfn|Glantz|2012|p=45}} Counterattacks by the Front's 2nd Mechanized Corps and 9th Army were defeated, but on 9 July the Axis advance stalled along the defenses of the Soviet 18th Army between the [[Prut River|Prut]] and [[Dniester River|Dniester]] Rivers.{{sfn|Glantz|2012|pp=45, 112}}

===Belorussia===
{{Main|Battle of Białystok–Minsk}}
In the opening hours of the invasion, the ''Luftwaffe'' destroyed the Western Front's air force on the ground, and with the aid of [[Abwehr]] and their supporting anti-communist fifth columns operating in the Soviet rear paralyzed the Front's communication lines, which particularly cut off the Soviet 4th Army headquarters from headquarters above and below it.{{sfn|Glantz|2010a|pp=29–33}} On the same day, the [[2nd Panzer Group]] crossed the [[Bug River]], broke through the 4th Army, bypassed [[Brest Fortress]], and pressed on towards [[Minsk]], while the [[3rd Panzer Group]] bypassed most of the 3rd Army and pressed on towards [[Vilnius]].{{sfn|Glantz|2010a|pp=29–33}} Simultaneously, the German 4th and 9th Armies engaged the Western Front forces in the environs of [[Białystok]].{{sfn|Seaton|1972|pp=119–125}} On the order of [[Dmitry Pavlov (general)|Dmitry Pavlov]], the commander of the Western Front, the 6th and 11th Mechanized Corps and the 6th Cavalry Corps launched a strong counterstrike towards [[Grodno]] on 24–25 June in hopes of destroying the 3rd Panzer Group. However, the 3rd Panzer Group had already moved on, with its forward units reaching Vilnius on the evening of 23 June, and the Western Front's armoured counterattack instead ran into infantry and antitank fire from the V Army Corps of the German 9th Army, supported by ''Luftwaffe'' air attacks.{{sfn|Glantz|2010a|pp=29–33}} By the night of 25 June, the Soviet counterattack was defeated, and the commander of the 6th Cavalry Corps was captured. The same night, Pavlov ordered all the remnants of the Western Front to withdraw to Slonim towards Minsk.{{sfn|Glantz|2010a|pp=29–33}} Subsequent counterattacks to buy time for the withdrawal were launched against the German forces, but all of them failed.{{sfn|Glantz|2010a|pp=29–33}} On 27 June, the 2nd and 3rd Panzer Groups met near Minsk and captured the city the next day, completing the encirclement of almost all of the Western Front in two pockets: one around Białystok and another west of Minsk.{{sfn|Glantz|2010a|pp=29–33, 56}} The Germans destroyed the Soviet 3rd and 10th Armies while inflicting serious losses on the 4th, 11th and 13th Armies, and reported to have captured 324,000 Soviet troops, 3,300 tanks, 1,800 artillery pieces.{{sfn|Murray|Millett|2000|pp=122–123}}{{sfn|Fritz|2011|pp=88, 509}}

A Soviet directive was issued on 29 June to combat the mass panic rampant among the civilians and the armed forces personnel. The order stipulated swift, severe measures against anyone inciting panic or displaying cowardice. The [[NKVD]] worked with commissars and military commanders to scour possible withdrawal routes of soldiers retreating without military authorization. Field expedient general courts were established to deal with civilians spreading rumors and military deserters.{{sfn|Seaton|1972|p=111}} On 30 June, Stalin relieved Pavlov of his command, and on 22 July tried and executed him along with many members of his staff on charges of "cowardice" and "criminal incompetence".{{sfn|Glantz|2010a|pp=56–57}}{{sfn|Forczyk|2014|p=253}}

On 29 June, Hitler, through the Commander-in-Chief of the [[German Army (Wehrmacht)|German Army]] Walther von Brauchitsch, instructed the commander of Army Group Center [[Fedor von Bock]] to halt the advance of his panzers until the infantry formations liquidating the pockets caught up.{{sfn|Glantz|2010a|pp=54–56}} But the commander of the 2nd Panzer Group [[Heinz Guderian]], with the tacit support of Fedor von Bock and the chief of OKH [[Franz Halder]], ignored the instruction and attacked on eastward towards Bobruisk, albeit reporting the advance as a [[reconnaissance-in-force]]. He also personally conducted an aerial inspection of the Minsk-Białystok pocket on 30 June and concluded that his panzer group was not needed to contain it, since [[Hermann Hoth]]'s 3rd Panzer Group was already involved in the Minsk pocket.{{sfn|Glantz|2010a|pp=60–62}} On the same day, some of the infantry corps of the 9th and 4th Armies, having sufficiently liquidated the Białystok pocket, resumed their march eastward to catch up with the panzer groups.{{sfn|Glantz|2010a|pp=60–62}} On 1 July, Fedor von Bock ordered the panzer groups to resume their full offensive eastward on the morning of 3 July. But Brauchitsch, upholding Hitler's instruction, and Halder, unwillingly going along with it, opposed Bock's order. However, Bock insisted on the order by stating that it would be irresponsible to reverse orders already issued. The panzer groups resumed their offensive on 2 July before the infantry formations had sufficiently caught up.{{sfn|Glantz|2010a|pp=60–62}}

===Northwest Russia===
{{Main|Continuation War}}
[[File:JR45 crossing Murmansk railway.jpg|thumb|left|upright=1.3|Finnish soldiers crossing the Murmansk Railway, 1941]]
During German-Finnish negotiations Finland had demanded to remain neutral unless the Soviet Union attacked them first. Germany therefore sought to provoke the Soviet Union into an attack on Finland. After Germany launched Barbarossa on 22 June, German aircraft used Finnish air bases to attack Soviet positions. The same day the Germans launched [[Operation Rentier]] and occupied the [[Pechengsky District|Petsamo Province]] at the Finnish-Soviet border. Simultaneously Finland proceeded to [[Operation Kilpapurjehdus|remilitarize the neutral Åland Islands]]. Despite these actions the Finnish government insisted via diplomatic channels that they remained a neutral party, but the Soviet leadership already viewed Finland as an ally of Germany. Subsequently, the Soviets proceeded to launch a massive bombing attack on 25 June against all major Finnish cities and industrial centers including Helsinki, Turku and Lahti. During a night session on the same day the Finnish parliament decided to go to war against the Soviet Union.{{sfnp|Nenye|Munter|Wirtanen|Birks|2016|pp=36, 39–41}}{{sfnp|Mann|Jörgensen|2002|pp=74–76}}

Finland was divided into two operational zones. Northern Finland was the staging area for Army Norway. Its goal was to execute a two-pronged pincer movement on the strategic port of [[Murmansk]], named [[Operation Silver Fox]]. Southern Finland was still under the responsibility of the Finnish Army. The goal of the Finnish forces was, at first, to recapture Finnish Karelia at [[Lake Ladoga]] as well as the Karelian Isthmus, which included Finland's second largest city [[Vyborg|Viipuri]].{{sfnp|Ueberschär|1998|pp=941–944; 974–980}}{{sfnp|Nenye|Munter|Wirtanen|Birks|2016|pp=38–41}}

==Further German advances==
{{Further|Battle of Smolensk (1941)|Leningrad Operation (1941)}}
[[File:OperationBarbarossa.PNG|thumb|upright=1.35|German advances during the opening phases of Operation Barbarossa, August 1941]]

On 2 July and through the next six days, a rainstorm typical of Belarusian summers slowed the progress of the panzers of Army Group Center, and Soviet defences stiffened.{{sfn|Glantz|2010a|p=63}} The delays gave the Soviets time to organize a massive counterattack against Army Group Center. The army group's ultimate objective was [[Smolensk]], which commanded the road to Moscow. Facing the Germans was an [[Stalin line|old Soviet defensive line]] held by six armies. On 6 July, the Soviets launched a massive counter-attack using the V and VII Mechanized Corps of the 20th Army,{{sfn|Glantz|House|2015|p=70}} which collided with the German 39th and 47th Panzer Corps in a battle where the Red Army lost 832 tanks of the 2,000 employed during five days of ferocious fighting.{{sfn|Bellamy|2007|p=240}} The Germans defeated this counterattack thanks largely to the coincidental presence of the ''Luftwaffe''{{'}}s only squadron of tank-busting aircraft.{{sfn|Bellamy|2007|p=240}} The 2nd Panzer Group crossed the Dnieper River and closed in on Smolensk from the south while the 3rd Panzer Group, after defeating the Soviet counterattack, closed on Smolensk from the north. Trapped between their pincers were three Soviet armies. The 29th Motorized Division captured Smolensk on 16 July yet a gap remained between Army Group Center. On 18 July, the panzer groups came to within {{convert|10|km|mi|spell=in}} of closing the gap but the trap did not finally close until 5 August, when upwards of 300,000 Red Army soldiers had been captured and 3,205 Soviet tanks were destroyed. Large numbers of Red Army soldiers escaped to stand between the Germans and Moscow as resistance continued.{{sfn|Murray|Millett|2000|pp=123–124}}

Four weeks into the campaign, the Germans realized they had grossly underestimated Soviet strength.{{sfn|Dear|Foot|1995|p=88}} The German troops had used their initial supplies, and General Bock quickly came to the conclusion that not only had the Red Army offered stiff opposition, but German difficulties were also due to the logistical problems with reinforcements and provisions.{{sfn|Keegan|1989|p=189}} Operations were now slowed down to allow for resupply; the delay was to be used to adapt strategy to the new situation.{{sfn|''Battle for Russia''|1996}} Hitler by now had lost faith in battles of encirclement as large numbers of Soviet soldiers had escaped the pincers.{{sfn|''Battle for Russia''|1996}} He now believed he could defeat the Soviet state by economic means, depriving them of the industrial capacity to continue the war. That meant seizing the industrial center of [[Kharkov]], the [[Donbas]] and the oil fields of the [[Caucasus]] in the south and the speedy capture of Leningrad, a major center of military production, in the north.{{sfn|Keegan|1989|p=195}}

Chief of the OKH, General [[Franz Halder]], [[Fedor von Bock]], the commander of Army Group Center, and almost all the German generals involved in Operation Barbarossa argued vehemently in favor of continuing the all-out drive toward Moscow.{{sfn|Keegan|1989|pp=192–194}}{{sfn|Wright|1968|p=38}} Besides the psychological importance of capturing the Soviet capital, the generals pointed out that Moscow was a major center of arms production, the center of the Soviet communications system and an important transport hub. Intelligence reports indicated that the bulk of the Red Army was deployed near Moscow under [[Semyon Timoshenko]] for the defense of the capital.{{sfn|''Battle for Russia''|1996}} Panzer commander [[Heinz Guderian]] was sent to Hitler by Bock and Halder to argue their case for continuing the assault against Moscow, but Hitler issued an order through Guderian (bypassing Bock and Halder) to send Army Group Center's tanks to the north and south, temporarily halting the drive to Moscow.{{sfn|Seaton|1982|pp=177–178}} Convinced by Hitler's argument, Guderian returned to his commanding officers as a convert to the Führer's plan, which earned him their disdain.{{sfn|Seaton|1982|p=178}}

===Northern Finland===
{{Main|Operation Silver Fox}}

On 29 June Germany launched its effort to capture Murmansk in a pincer attack. The northern pincer, conducted by [[Mountain Corps Norway]], approached Murmansk directly by crossing the border at Petsamo. However, in mid-July after securing the neck of the [[Rybachy Peninsula]] and advancing to the [[Zapadnaya Litsa River|Litsa River]] the German advance was stopped by heavy resistance from the Soviet [[14th Army (Soviet Union)|14th Army]]. Renewed attacks led to nothing, and this front became a stalemate for the remainder of Barbarossa.{{sfnp|Mann|Jörgensen|2002|pp=81–87}}{{sfnp|Ueberschär|1998|pp=941–944}}

The second pincer attack began on 1 July with the German [[XXXVI Mountain Corps (Wehrmacht)|XXXVI Corps]] and [[Finnish III Corps (Continuation War)|Finnish III Corps]] slated to recapture the [[Salla]] region for Finland and then proceed eastwards to cut the [[Kirov Railway|Murmansk railway]] near [[Kandalaksha]]. The German units had great difficulty dealing with the Arctic conditions. After heavy fighting, Salla was taken on 8 July. To keep the momentum the German-Finnish forces advanced eastwards until they were stopped at the town of [[Kayraly]] by Soviet resistance. Further south the Finnish III Corps made an independent effort to reach the Murmansk railway through the Arctic terrain. Facing only one division of the Soviet [[7th Army (Soviet Union)|7th Army]] it was able to make rapid headway. On 7 August it captured Kestenga while reaching the outskirts of [[Kalevala, Russia|Ukhta]]. Large Red Army reinforcements then prevented further gains on both fronts, and the German-Finnish force had to go onto the defensive.{{sfnp|Ueberschär|1998|pp=941–951}}{{sfnp|Mann|Jörgensen|2002|pp=87–93}}

===Karelia===
{{Main|Finnish reconquest of Ladoga Karelia (1941)|Finnish reconquest of the Karelian Isthmus (1941)}}
[[File:Finnish troops advancing near Rautjärvi.jpg|thumb|Finnish troops advancing in Karelia in August 1941]]
The Finnish plan in the south in Karelia was to advance as swiftly as possible to Lake Ladoga, cutting the Soviet forces in half. Then the Finnish territories east of Lake Ladoga were to be recaptured before the advance along the Karelian Isthmus, including the recapture of Viipuri, commenced. The Finnish attack was launched on 10 July. The Army of Karelia held a numerical advantage versus the Soviet defenders of the 7th Army and [[23rd Army (Soviet Union)|23rd Army]], so it could advance swiftly. The important road junction at Loimola was captured on 14 July. By 16 July, the first Finnish units reached Lake Ladoga at Koirinoja, achieving the goal of splitting the Soviet forces. During the rest of July, the Army of Karelia advanced further southeast into Karelia, coming to a halt at the former Finnish-Soviet border at Mansila.{{sfnp|Nenye|Munter|Wirtanen|Birks|2016|pp=67–86}}{{sfnp|Ueberschär|1998|pp=970–974}}

With the Soviet forces cut in half, the attack on the Karelian Isthmus could commence. The Finnish army attempted to encircle large Soviet formations at [[Sortavala]] and [[Hiitola]] by advancing to the western shores of Lake Ladoga. By mid-August the encirclement had succeeded and both towns were taken, but many Soviet formations were able to evacuate by sea. Further west, the attack on Viipuri was launched. With Soviet resistance breaking down, the Finns were able to encircle Viipuri by advancing to the [[Vuoksi River]]. The city itself was taken on 30 August, along with a broad advance on the rest of the Karelian Isthmus. By the beginning of September, Finland had restored its pre-[[Winter War]] borders.{{sfnp|Nenye|Munter|Wirtanen|Birks|2016|pp=87–109}}{{sfnp|Ueberschär|1998|pp=970–974}}

===Offensive towards central Russia===
{{Main|Battle of Uman}}
By mid-July, the German forces had advanced within a few kilometers of [[Kiev]] below the [[Pripyat Marshes]]. The 1st Panzer Group then went south, while the 17th Army struck east and trapped three Soviet armies near [[Uman]].{{sfn|Thomas|2012|p=13}} As the Germans eliminated the pocket, the tanks turned north and crossed the Dnieper. Meanwhile, the 2nd Panzer Group, diverted from Army Group Center, had crossed the river Desna with 2nd Army on its right flank. The two panzer armies now trapped four Soviet armies and parts of two others.{{sfn|Thomas|2012|pp=12–14}}

By August, as the serviceability and the quantity of the ''Luftwaffe''{{'}}s inventory steadily diminished due to combat, demand for air support only increased as the VVS recovered. The ''Luftwaffe'' found itself struggling to maintain local air superiority.{{sfn|Hardesty|2012|p=84}} With the onset of bad weather in October, the ''Luftwaffe'' was on several occasions forced to halt nearly all aerial operations. The VVS, although faced with the same weather difficulties, had a clear advantage thanks to the prewar experience with cold-weather flying, and the fact that they were operating from intact airbases and airports.{{sfn|Hardesty|2012|p=83–85}} By December, the VVS had matched the ''Luftwaffe'' and was even pressing to achieve air superiority over the battlefields.{{sfn|Hardesty|2012|p=103}}

===Leningrad===
{{Main|Siege of Leningrad}}
For its final attack on Leningrad, the 4th Panzer Group was reinforced by tanks from Army Group Center. On 8 August, the Panzers broke through the Soviet defences. By the end of August, 4th Panzer Group had penetrated to within {{convert|48|km|abbr=off}} of Leningrad. The Finns{{Efn|Significant planning for Finnish participation in the campaign against the Soviet Union was conducted well-before the plan's actual implementation.{{sfn|Ueberschär|1998|pp=455–470}} }} had pushed southeast on both sides of [[Lake Ladoga]] to reach the old Finnish-Soviet frontier.{{sfn|Klink|1998|pp=631–641}}

[[File:Bundesarchiv Bild 183-L19885, Russland, Heinz Guderian vor Gefechtsstand.jpg|thumb|German general [[Heinz Guderian]] (centre), commander of [[Panzer Group 2]], on 20 August 1941]]

The Germans attacked Leningrad in August 1941; in the following three "black months" of 1941, 400,000 residents of the city worked to build the city's fortifications as fighting continued, while 160,000 others joined the ranks of the Red Army. Nowhere was the Soviet {{lang|fr|[[levée en masse]]}} spirit stronger in resisting the Germans than at Leningrad where reserve troops and freshly improvised {{transl|ru|[[Narodnoe Opolcheniye]]}} units, consisting of worker battalions and even schoolboy formations, joined in digging trenches as they prepared to defend the city.{{sfn|Werth|1964|p=199}} On 7 September, the German [[20th Infantry Division (Wehrmacht)|20th Motorized Division]] seized [[Shlisselburg]], cutting off all land routes to Leningrad. The Germans severed the railroads to Moscow and captured the railroad to [[Murmansk]] with Finnish assistance to inaugurate the start of a siege that would last for over two years.{{sfn|Miller|Commager|2001|pp=68–69}}{{sfn|Beevor|2012|p=204}}

At this stage, Hitler ordered the final destruction of Leningrad with no prisoners taken, and on 9 September, Army Group North began the final push. Within ten days it had advanced within {{convert|11|km|abbr=off}} of the city.{{sfn|''Hitler Strikes East''|2009}} However, the push over the last {{convert|10|km|mi|abbr=on}} proved very slow and casualties mounted. Hitler, now out of patience, ordered that Leningrad should not be stormed, but rather starved into submission. Along these lines, the OKH issued Directive No. la {{not a typo|1601/41}} on 22 September 1941, which accorded Hitler's plans.{{sfn|Forczyk|2009|p=11}} Deprived of its Panzer forces, Army Group Center remained static and was subjected to numerous Soviet counterattacks, in particular the [[Yelnya Offensive]], in which the Germans suffered their first major tactical defeat since their invasion began; this Red Army victory also provided an important boost to Soviet morale.{{sfn|Werth|1964|pp=189–190, 195–197}} These attacks prompted Hitler to concentrate his attention back to Army Group Center and its drive on Moscow. The Germans ordered the 3rd and 4th Panzer Armies to break off their [[Siege of Leningrad]] and support Army Group Center in its attack on Moscow.{{sfn|Müller|2016|p=180}}{{sfn|Cooper|1984|pp=328–330}}

===Kiev===
{{Main|Battle of Kiev (1941)}}
Before an attack on Moscow could begin, operations in Kiev needed to be finished. Half of Army Group Center had swung to the south in the back of the Kiev position, while Army Group South moved to the north from its Dnieper [[bridgehead]].{{sfn|Glantz|House|1995|p=77}} The encirclement of Soviet forces in Kiev was achieved on 16 September. A battle ensued in which the Soviets were hammered with tanks, artillery, and aerial bombardment. After ten days of vicious fighting, the Germans claimed 665,000 Soviet soldiers captured, although the real figure is probably around 220,000 prisoners.{{sfn|Glantz|House|2015|p=94}} Soviet losses were 452,720 men, 3,867 artillery pieces and mortars from 43 divisions of the 5th, 21st, 26th, and 37th Soviet Armies.{{sfn|Glantz|House|1995|p=77}} Despite the exhaustion and losses facing some German units (upwards of 75 percent of their men) from the intense fighting, the massive defeat of the Soviets at Kiev and the Red Army losses during the first three months of the assault contributed to the German assumption that [[Operation Typhoon]] (the attack on Moscow) could still succeed.{{sfn|Fritz|2011|p=145}}

===Sea of Azov===
{{Main|Battle of the Sea of Azov}}
[[File:Bundesarchiv Bild 183-L20582, Charkow, Strassenkämpfe.jpg|thumb|Germans battle Soviet defenders on the streets of [[Kharkov]], 25 October 1941]]
After operations at Kiev were successfully concluded, Army Group South advanced east and south to capture the industrial [[Donbas]] region and the [[Crimea]]. The Soviet [[Southern Front (Soviet Union)|Southern Front]] launched an attack on 26 September with two armies on the northern shores of the [[Sea of Azov]] against elements of the German [[11th Army (Wehrmacht)|11th Army]], which was simultaneously advancing into the Crimea. On 1 October the [[1st Panzer Army]] under [[Paul Ludwig Ewald von Kleist|Ewald von Kleist]] swept south to [[pincer movement|encircle]] the two attacking Soviet armies. By 7 October the Soviet [[9th Army (Soviet Union)|9th]] and [[18th Army (Soviet Union)|18th Armies]] were isolated and four days later they had been annihilated. The Soviet defeat was total; 106,332 men captured, 212 [[tank]]s destroyed or captured in the pocket alone as well as 766 [[artillery]] pieces of all types.{{sfn|Liedtke|2016|p=149}} The death or capture of two-thirds of all Southern Front troops in four days unhinged the Front's left flank, allowing the Germans to [[First Battle of Kharkov|capture]] [[Kharkov]] on 24 October. Kleist's 1st Panzer Army took the Donbas region that same month.{{sfn|Liedtke|2016|p=149}}

===Central and northern Finland===
[[File:Continuation War December 1941 English.jpg|thumb|The front in Finland, December 1941]]

In central Finland, the German-Finnish advance on the Murmansk railway had been resumed at Kayraly. A large encirclement from the north and the south trapped the defending Soviet corps and allowed XXXVI Corps to advance further to the east.{{sfn|Ziemke|1959|pp=170–172}} In early-September it reached the old 1939 Soviet border fortifications. On 6 September the first defence line at the Voyta River was breached, but further attacks against the main line at the [[Verman River]] failed.{{sfn|Ziemke|1959|pp=174–178}} With Army Norway switching its main effort further south, the front stalemated in this sector. Further south, the Finnish III Corps launched a new offensive towards the Murmansk railway on 30 October, bolstered by fresh reinforcements from Army Norway. Against Soviet resistance, it was able to come within {{cvt|30|km|mi}} of the railway, when the Finnish High Command ordered a stop to all offensive operations in the sector on 17 November. The United States of America applied diplomatic pressure on Finland to not disrupt Allied aid shipments to the Soviet Union, which caused the Finnish government to halt the advance on the Murmansk railway. With the Finnish refusal to conduct further offensive operations and German inability to do so alone, the German-Finnish effort in central and northern Finland came to an end.{{sfnp|Ueberschär|1998|pp=941–953}}{{sfnp|Mann|Jörgensen|2002|pp=93–97}}

===Karelia===
{{Main|Finnish invasion of East Karelia (1941)}}

Germany had pressured Finland to enlarge its offensive activities in Karelia to aid the Germans in their Leningrad operation. Finnish attacks on Leningrad itself remained limited. Finland stopped its advance just short of Leningrad and had no intentions to attack the city. The situation was different in eastern Karelia. The Finnish government agreed to restart its offensive into Soviet Karelia to reach [[Lake Onega]] and the [[Svir River]]. On 4 September this new drive was launched on a broad front. Albeit reinforced by fresh reserve troops, heavy losses elsewhere on the front meant that the Soviet defenders of the 7th Army were not able to resist the Finnish advance. [[Olonets]] was taken on 5 September. On 7 September, Finnish forward units reached the Svir River.{{sfn|Menger|1997|p=533}} [[Petrozavodsk]], the capital city of the [[Karelo-Finnish Soviet Socialist Republic|Karelo-Finnish SSR]], fell on 1 October. From there the Army of Karelia moved north along the shores of Lake Onega to secure the remaining area west of Lake Onega, while simultaneously establishing a defensive position along the Svir River. Slowed by winter's onset they nevertheless continued to advance slowly during the following weeks. [[Medvezhyegorsk]] was captured on 5 December and [[Povenets]] fell the next day. On 7 December Finland called a stop to all offensive operations, going onto the defensive.{{sfnp|Ueberschär|1998|pp=974–980}}{{sfnp|Nenye|Munter|Wirtanen|Birks|2016|pp=109–132}}

==Battle of Moscow==
{{Main|Battle of Moscow}}
[[File:RIAN archive 2564 Soviet planes flying over Nazi positions near Moscow.jpg|thumb|Soviet [[Ilyushin Il-2]]s flying over German positions near Moscow]]
After Kiev, the Red Army no longer outnumbered the Germans and there were no more trained reserves directly available. To defend Moscow, Stalin could field 800,000 men in 83 divisions, but no more than 25 divisions were fully effective. Operation Typhoon, the drive to Moscow, began on 30 September 1941.{{sfn|Stone|2011|p=215}}{{sfn|Stahel|2009|p=440}} In front of Army Group Center was a series of elaborate defence lines, the first centred on [[Vyazma]] and the second on [[Mozhaysk]].{{sfn|Thomas|2012|pp=12–14}} Russian peasants began fleeing ahead of the advancing German units, burning their harvested crops, driving their cattle away, and destroying buildings in their villages as part of a scorched-earth policy designed to deny to the Nazi war machine needed supplies and foodstuffs.{{sfn|Gilbert|1989|pp=241–242}}

The first blow took the Soviets completely by surprise when the 2nd Panzer Group, returning from the south, took [[Oryol]], just {{convert|121|km|mi|abbr=on}} south of the Soviet first main defense line.{{sfn|Thomas|2012|pp=12–14}} Three days later, the Panzers pushed on to [[Bryansk]], while the 2nd Army attacked from the west.{{sfn|Gilbert|1989|p=242}} The Soviet 3rd and 13th Armies were now encircled. To the north, the 3rd and 4th Panzer Armies attacked [[Vyazma]], trapping the 19th, 20th, 24th and 32nd Armies.{{sfn|Thomas|2012|pp=12–14}} Moscow's first line of defense had been shattered. The pocket eventually yielded over 500,000 Soviet prisoners, bringing the tally since the start of the invasion to three million. The Soviets now had only 90,000 men and 150 tanks left for the defense of Moscow.{{sfn|Glantz|House|1995|p=343}}

The German government now publicly predicted the imminent capture of Moscow and convinced foreign correspondents of an impending Soviet collapse.{{sfn|Smith|2000|pp=83–91}} On 13 October, the 3rd Panzer Group penetrated to within {{convert|140|km|mi|abbr=on}} of the capital.{{sfn|Thomas|2012|pp=12–14}} [[Martial law]] was declared in Moscow. Almost from the beginning of Operation Typhoon, however, the weather worsened. Temperatures fell while there was continued rainfall. This turned the unpaved road network [[Rasputitsa|into mud]] and slowed the German advance on Moscow.{{sfn|Hill|2016|pp=250, 255}} Additional snows fell which were followed by more rain, creating a glutinous mud that German tanks had difficulty traversing, whereas the Soviet T-34, with its wider tread, was better suited to navigate.{{sfn|Gilbert|1989|p=244}} At the same time, the supply situation for the Germans rapidly deteriorated.{{sfn|Shepherd|2016|pp=178–179}} On 31 October, the German Army High Command ordered a halt to Operation Typhoon while the armies were reorganized. The pause gave the Soviets, far better supplied, time to consolidate their positions and organize formations of newly activated reservists.{{sfn|Gilbert|1989|pp=245–246}}{{sfn|Hill|2016|pp=255, 265}} In little over a month, the Soviets organized eleven new armies that included 30 divisions of Siberian troops. These had been freed from the Soviet Far East after [[Richard Sorge|Soviet intelligence]] assured Stalin that there was no longer a threat from the Japanese.{{sfn|Gilbert|1989|p=245}} During October and November 1941, over 1,000 tanks and 1,000 aircraft arrived along with the Siberian forces to assist in defending the city.{{sfn|Keegan|1989|p=203}}

With the ground hardening due to the cold weather,{{Efn|On 12 November 1941 the temperature around Moscow was {{convert|-12|C}}.{{sfn|Gilbert|1989|p=255}} }} the Germans resumed the attack on Moscow on 15 November.{{sfn|Roberts|2011|pp=174–175}} Although the troops themselves were now able to advance again, there had been no improvement in the supply situation. Facing the Germans were the 5th, 16th, 30th, 43rd, 49th, and 50th Soviet Armies. The Germans intended to move the 3rd and 4th Panzer Armies across the [[Moscow Canal]] and envelop Moscow from the northeast. The 2nd Panzer Group would attack [[Tula, Russia|Tula]] and then close on Moscow from the south.{{sfn|Roberts|2011|pp=175–176}} As the Soviets reacted to their flanks, the 4th Army would attack the center. In two weeks of fighting, lacking sufficient fuel and ammunition, the Germans slowly crept towards Moscow. In the south, the 2nd Panzer Group was being blocked. On 22 November, Soviet Siberian units, augmented by the 49th and 50th Soviet Armies, attacked the 2nd Panzer Group and inflicted a defeat on the Germans. The 4th Panzer Group pushed the Soviet 16th Army back, however, and succeeded in crossing the Moscow Canal in an attempt to encircle Moscow.{{sfn|Glantz|House|2015|pp=104–108}}

[[File:Eastern Front 1941-06 to 1941-09.png|thumb|upright=1.2|The German position of advances before the start of Operation Typhoon, September 1941]]

On 2 December, part of the 258th Infantry Division advanced to within {{convert|24|km|mi|abbr=on}} of Moscow. They were so close that German officers claimed they could see the spires of the [[Moscow Kremlin|Kremlin]],{{sfn|Glantz|House|2015|p=106}} but by then the first blizzards had begun.{{sfn|Shirer|1990|p=1032}} A reconnaissance battalion managed to reach the town of [[Khimki#History|Khimki]], only about {{convert|8|km|mi|abbr=on}} from the Soviet capital. It captured the bridge over the Moscow-Volga Canal as well as the railway station, which marked the easternmost advance of German forces.{{sfn|Commager|1991|p=144}} In spite of the progress made, the ''Wehrmacht'' was not equipped for such severe winter warfare.{{sfn|Glantz|House|1995|pp=85, 87}} The Soviet army was better adapted to fighting in winter conditions, but faced production shortages of winter clothing. The German forces fared worse, with deep snow further hindering equipment and mobility.{{sfn|Glantz|House|1995|p=87}}{{sfn|Hill|2016|pp=301, 305}} Weather conditions had largely grounded the ''Luftwaffe'', preventing large-scale air operations.{{sfn|Mosier|2006|p=184}} Newly created Soviet units near Moscow now numbered over 500,000 men, and on 5 December, they launched a massive counterattack as part of the [[Battle of Moscow#Soviet counter-offensive|Soviet winter counteroffensive]]. The offensive halted on 7 January 1942, after having pushed the German armies back {{cvt|100|-|250|km|mi}} from Moscow.{{sfn|Glantz|House|1995|pp=91–97}} The ''Wehrmacht'' had lost the Battle for Moscow, and the invasion had cost the German Army over 830,000 men.{{sfn|Fritz|2011|p=209}}

==Aftermath==
With the failure of the [[Battle of Moscow]], all German plans for a quick defeat of the Soviet Union had to be revised. The Soviet counter-offensives in December 1941 caused heavy casualties on both sides, but ultimately eliminated the German threat to Moscow.{{sfn|Müller|2016|pp=181–182}}{{sfn|Baker|2009|pp=50–56}} Attempting to explain matters, Hitler issued Directive N. 39, which cited the early onset of winter and the severe cold as the reason for the German failure,{{sfn|Baker|2009|p=54}} whereas the main reason was the German military unpreparedness for such a giant enterprise.{{sfn|Shepherd|2016|p=536}} On 22 June 1941, the ''Heer'' as a whole had 209 divisions at its disposal, 163 of which were offensively capable. On 31 March 1942, less than one year after the invasion of the Soviet Union, the army was reduced to fielding 58 offensively capable divisions.{{sfn|Wegner|1990|p=792}} The Red Army's tenacity and ability to counter-attack effectively took the Germans as much by surprise as their own initial attack had the Soviets. Spurred on by the successful defense and in an effort to imitate the Germans, Stalin wanted to begin his own counteroffensive, not just against the German forces around Moscow, but against their armies in the north and south.{{sfn|Müller|2016|p=181}} Anger over the failed German offensives caused Hitler to relieve Field Marshal [[Walther von Brauchitsch]] of command and in his place, Hitler assumed personal control of the German Army on 19 December 1941.{{sfn|Baudot|Bernard|Foot|Jacobsen|1989|p=482}}

The Soviet Union had suffered heavily from the conflict, losing huge tracts of territory, and vast losses in men and materiel. Nonetheless, the Red Army proved capable of countering the German offensives, particularly as the Germans began experiencing irreplaceable shortages in manpower, armaments, provisions, and fuel.{{sfn|Baudot|Bernard|Foot|Jacobsen|1989|pp=482–483}} Despite the rapid relocation of Red Army armaments production east of the Urals and a dramatic increase of production in 1942, especially of armour, new aircraft types and artillery, the ''Heer'' was able to mount another large-scale offensive in July 1942, although on a much reduced front than the previous summer. Hitler, having realized that Germany's oil supply was "severely depleted",{{sfn|Hayward|2000|p=769}} aimed to capture the [[oil field]]s of [[Baku]] in an offensive, codenamed [[Case Blue]].{{sfn|Symonds|2014|p=70}} Again, the Germans quickly overran great expanses of Soviet territory, but they failed to achieve their ultimate goals in the wake of their defeat at the [[Battle of Stalingrad]] in February 1943.{{sfn|Baker|2009|pp=57–68}}

By 1943, Soviet armaments production was fully operational and increasingly outproducing the German war economy.{{sfn|Dunn|1995|pp=44–45}} The final major German offensive in the Eastern theater of the Second World War took place during July—August 1943 with the launch of [[Operation Citadel]], an assault on the Kursk salient.{{sfn|Baudot|Bernard|Foot|Jacobsen|1989|p=483}} Approximately one million German troops confronted a Soviet force over 2.5&nbsp;million strong. The Soviets prevailed in the [[Battle of Kursk]]. Following the German defeat, the Soviets launched [[Operation Kutuzov]], a counter-offensives employing six million men along a {{convert|1500|mi|order=flip|adj=on}} front towards the Dnieper River as they drove the Germans westwards.{{sfn|Glantz|2002|pp=36–41}} Employing increasingly ambitious and tactically sophisticated offensives, along with making operational improvements in secrecy and deception, the Red Army was eventually able to liberate much of the area which the Germans had previously occupied by the summer of 1944.{{sfn|Shepherd|2016|pp=444–450, 463–467}} The destruction of [[Army Group Centre]], the outcome of [[Operation Bagration]], proved to be a decisive success; additional Soviet offensives against the German Army Groups North and South in the autumn of 1944 put the German war machine into retreat.{{sfn|Baker|2009|pp=87–97}} By January 1945, Soviet military might was aimed at the German capital of Berlin.{{sfn|Baker|2009|p=98}} The war ended with the total defeat and capitulation of Nazi Germany in May 1945.{{sfn|Burleigh|2000|pp=794–812}}

===War crimes===
{{Main|Einsatzgruppen|German atrocities committed against Soviet prisoners of war|The Holocaust in Russia|War crimes of the Wehrmacht}}
[[File:Bundesarchiv Bild 146-1972-026-43, Minsk, Widerstandskämpfer vor Hinrichtung.jpg|thumb|right|[[Masha Bruskina]], a nurse with the [[Soviet partisans|Soviet resistance]], before her execution by hanging. The placard reads "We are the partisans who shot German troops", [[Minsk]], 26 October 1941]]
While the Soviet Union had not signed the Geneva Convention, Germany had signed the treaty and was thus obligated to offer Soviet POWs humane treatment according to its provisions (as they generally did with other Allied POWs).{{sfn|Bellamy|2007|pp=16, 20–23}} According to the Soviets, they had not signed the Geneva Conventions in 1929 due to Article 9 which, by imposing [[racial segregation]] of POWs into different camps, contravened the Soviet constitution.{{sfn|Bellamy|2007|p=20}} Article 82 of the convention specified that "In case, in time of war, one of the belligerents is not a party to the Convention, its provisions shall nevertheless remain in force as between the belligerents who are parties thereto."{{sfn|Geneva Convention, Article 82}} Despite such mandates, Hitler called for the battle against the Soviet Union to be a "struggle for existence" and emphasized that the Russian armies were to be "[[war of annihilation|annihilated]]", a mindset that contributed to [[German atrocities committed against Soviet prisoners of war|war crimes against Soviet prisoners of war]].{{sfn|Kershaw|2001|pp=355–389}} A memorandum from 16 July 1941, recorded by [[Martin Bormann]], quotes Hitler saying, "The giant [occupied] area must naturally be pacified as quickly as possible; this will happen at best if anyone who just looks funny should be shot".{{sfn|Browning|1998|p=10}}{{sfn|Förster|1988|p=31}} Conveniently for the Nazis, the fact that the Soviets failed to sign the convention played into their hands as they justified their behavior accordingly. Even if the Soviets had signed, it is highly unlikely that this would have stopped the Nazis' [[genocidal]] policies towards combatants, civilians, and prisoners of war.{{sfn|Bellamy|2007|pp=20–21}}

[[File:Himmler besichtigt die Gefangenenlager in Russland. Heinrich Himmler inspects a prisoner of war camp in Russia, circa... - NARA - 540164.jpg|thumb|left|Himmler inspecting a prisoner of war camp]]

Before the war, Hitler issued the notorious [[Commissar Order]], which called for all Soviet [[political commissar]]s taken prisoner at the front to be [[Summary execution|shot immediately without trial]].{{sfn|Kershaw|2001|pp=357–359}} German soldiers participated in these mass killings along with members of the {{lang|de|SS-Einsatzgruppen}}, sometimes reluctantly, claiming "military necessity".{{sfn|Wette|2007|pp=198–199}}{{sfn|Förster|1998|pp=507–513}} On the eve of the invasion, German soldiers were informed that their battle "demands ruthless and vigorous measures against Bolshevik inciters, guerrillas, saboteurs, Jews and the complete elimination of all active and passive resistance". Collective punishment was authorized against partisan attacks; if a perpetrator could not be quickly identified, then burning villages and mass executions were considered acceptable reprisals.{{sfn|Förster|1988|p=26}} Although the majority of German soldiers accepted these crimes as justified due to Nazi propaganda, which depicted the Red Army as {{lang|de|[[Untermenschen]]}}, a few prominent German officers openly protested against them.{{sfn|Ueberschär|Müller|2008|p=246}} An estimated two million Soviet [[prisoner of war|prisoners of war]] died of starvation during Barbarossa alone.{{sfn|Hartmann|2013|pp=89–94}} By the end of the war, 58 percent of all Soviet prisoners of war had died in German captivity.{{sfn|Glantz|2012|p=48}}

Organized crimes against civilians, including women and children, were carried out on a huge scale by the German police and military forces, as well as the [[Collaboration with the Axis Powers during World War II|local collaborators]].{{sfn|Glantz|House|1995|pp=56–57}}{{sfn|Browning|1998|pp=10–12}} Under the command of the [[Reich Security Main Office]], the {{lang|de|[[Einsatzgruppen]]}} killing squads conducted large-scale [[massacre]]s of Jews and [[Communism|communists]] in conquered Soviet territories. [[Holocaust]] historian [[Raul Hilberg]] puts the number of Jews murdered by "mobile killing operations" at 1,400,000.{{sfn|Hilberg|1961|p=767}} The original instructions to kill "Jews in party and state positions" were broadened to include "all male Jews of military age" and then expanded once more to "all male Jews regardless of age." By the end of July, the Germans were regularly killing women and children.{{sfn|Beevor|2012|p=213}} On 18 December 1941, Himmler and Hitler discussed the "Jewish question", and Himmler noted the meeting's result in his appointment book: "To be annihilated as partisans." According to [[Christopher Browning]], "annihilating Jews and solving the so-called 'Jewish question' under the cover of killing partisans was the agreed-upon convention between Hitler and Himmler".{{sfn|Browning|2000}} In accordance with Nazi policies against "inferior" Asian peoples, [[Turkmens]] were also persecuted. According to a post-war report by Prince Veli Kajum Khan, they were imprisoned in concentration camps in terrible conditions, where those deemed to have "Mongolian" features were murdered daily. Asians were also targeted by the {{lang|de|Einsatzgruppen}} and were the subjects of lethal medical experiments and murder at a "pathological institute" in Kiev.{{sfn|Breitman|1990|pp=341–343}} Hitler received reports of the mass killings conducted by the {{lang|de|Einsatzgruppen}} which were first conveyed to the RSHA, where they were aggregated into a summary report by [[Gestapo]] Chief [[Heinrich Müller (Gestapo)|Heinrich Müller]].{{sfn|Langerbein|2003|pp=33–34}}
[[File:Bundesarchiv Bild 101I-212-0212A-19, Russland, SS-Brigdeführer und Erich Hoepner.jpg|thumb|upright|General [[Erich Hoepner]] (right) with commander of [[SS Polizei Division]], [[Walter Krüger (SS general)|Walter Krüger]], in October 1941]]

Burning houses suspected of being partisan meeting places and poisoning water wells became common practice for soldiers of the German [[9th Army (Wehrmacht)|9th Army]]. At [[Kharkov]], the fourth largest city in the Soviet Union, food was provided only to the small number of civilians who worked for the Germans, with the rest designated to slowly starve.{{sfn|Moskoff|2002|pp=54–57}} Thousands of Soviets were [[Forced labour under German rule during World War II|deported to Germany to be used as slave labor]] beginning in 1942.{{sfn|Glantz|House|1995|p=57}}

The citizens of [[Leningrad]] were subjected to heavy bombardment and [[Siege of Leningrad|a siege]] that would last 872 days and starve more than a million people to death, of whom approximately 400,000 were children below the age of 14.{{sfn|''Siege of Leningrad''|2011}}{{sfn|Miller|Commager|2001|p=69}}{{sfn|Beevor|2012|p=289}} The German-Finnish blockade cut off access to food, fuel and raw materials, and rations reached a low, for the non-working population, of four ounces (five thin slices) of bread and a little watery soup per day.{{sfn|Miller|Commager|2001|p=68}} Starving Soviet civilians began to eat their domestic animals, along with hair tonic and [[Vaseline]]. Some desperate citizens resorted to cannibalism; Soviet records list 2,000 people arrested for "the use of human meat as food" during the siege, 886 of them during the first winter of 1941–42.{{sfn|Beevor|2012|p=289}} The ''Wehrmacht'' planned to seal off Leningrad, starve out the population, and then demolish the city entirely.{{sfn|Beevor|2012|p=204}}

====Sexual violence====
{{see also|Wartime sexual violence#World War II|War crimes of the Wehrmacht}}
Rape was a widespread phenomenon in the East as German soldiers regularly committed violent sexual acts against Soviet women.{{sfn|Mühlhäuser|2010|p=74}} Whole units were occasionally involved in the crime with upwards of one-third of the instances being [[gang rape]].{{sfn|Shepherd|2016|p=285}} Historian [[Hannes Heer]] relates that in the world of the eastern front, where the German army equated Russia with Communism, everything was "fair game"; thus, rape went unreported unless entire units were involved.{{sfn|Heer|2000|p=110}} Frequently in the case of Jewish women, they were immediately murdered following acts of sexual violence.{{sfn|Mühlhäuser|2010|p=134}} Historian Birgit Beck emphasizes that military decrees, which served to authorize wholesale brutality on many levels, essentially destroyed the basis for any prosecution of sexual offenses committed by German soldiers in the East.{{sfn|Beck|2004|p=327}} She also contends that detection of such instances was limited by the fact that sexual violence was often inflicted in the context of [[billet]]s in civilian housing.{{sfn|Beck|2004|p=328}}

==Historical significance==
Operation Barbarossa was the largest military operation in history – more men, tanks, guns and aircraft were deployed than in any other offensive.{{sfn|Overy|1996|p=68}} The invasion opened up the [[Eastern Front (World War II)|Eastern Front]], the war's largest theater, which saw clashes of unprecedented violence and destruction for four years and killed over 26 million Soviet people, including about 8.6&nbsp;million [[World War II casualties of the Soviet Union|Red army soldiers]].{{sfn|Moskoff|2002|p=236}} More died fighting on the Eastern Front than in all other fighting across the globe during World War II.{{sfn|Weinberg|2005|p=243}} Damage to both the economy and landscape was enormous, as approximately 1,710 Soviet towns and 70,000 villages were razed.{{sfn|Hartmann|2013|p=160}}

{{See also|Satellite state#Post-World War II}}

Operation Barbarossa and the subsequent German defeat changed the political landscape of Europe, dividing it into Eastern and Western blocs.{{sfn|Hartmann|2013|pp=152–153}} The political vacuum left in the eastern half of the continent was filled by the USSR when Stalin secured his territorial prizes of 1944–1945 and firmly placed his Red Army in Bulgaria, Romania, Hungary, Poland, Czechoslovakia, and the eastern half of Germany.{{sfn|Hartmann|2013|p=153}} Stalin's fear of resurgent German power and his distrust of his erstwhile allies contributed to Soviet pan-Slavic initiatives and a subsequent alliance of Slavic states.{{sfn|Roberts|2014|pp=258–260}} Historians [[David Glantz]] and [[Jonathan House]] assert Operation Barbarossa{{Efn|Glantz and House use the expression "The Great Patriotic War", which is the Soviet name for the Second World War—but this term represents by and large, the contest between the U.S.S.R. and Nazi Germany.}} influenced not only Stalin but subsequent Soviet leaders, claiming it "colored" their strategic mindsets for the "next four decades". As a result, the Soviets instigated the creation of "an elaborate system of [[Buffer state|buffer]] and [[client state|client]] states, designed to insulate the Soviet Union from any possible future attack."{{sfn|Glantz|House|2015|p=364}} As a consequence, Eastern Europe became communist in political disposition, and Western Europe fell under the democratic sway of the United States.{{sfn|Hartmann|2013|pp=154–155}}

==See also==
* [[Black Sea Campaigns (1941-44)|Black Sea campaigns]]
** [[Romanian Navy during World War II]]
* [[Kantokuen]]
* [[Operation Silver Fox]]
* [[Timeline of the Eastern Front of World War II]]
* [[Final Solution]]
{{Portal bar|Military of Germany|Germany|Soviet Union|World War II}}

==References==
===Notes===
{{notelist |refs=
{{efn|name=western military districts Soviet Union |The four Soviet military districts facing the Axis, the [[Baltic Military District]], the [[Western Special Military District]], the [[Kiev Special Military District]] and the [[Odessa Military District]], at the outbreak of the war were renamed the [[Northwestern Front]], the [[Western Front (Soviet Union)|Western Front]], the [[Soviet Southwestern Front|Southwestern Front]] and the [[Southern Front (Soviet Union)|Southern Front]], respectively. A fifth military district, the [[Leningrad military district]], became the [[Northern Front (Soviet Union)|Northern Front]].{{sfn|Glantz|2012|pp=11, 16, 208}}
}}
}}

===Citations===
{{Reflist|20em}}

===Bibliography===
{{Refbegin|30em|indent=yes}}
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* {{cite book | last = Shepherd | first = Ben H. |author-link = Ben H. Shepherd | year = 2016 | title = Hitler's Soldiers: The German Army in the Third Reich | location = New Haven and London | publisher = Yale University Press | isbn = 978-0-30017-903-3 }}
* {{cite book |last=Shirer |first=William |author-link=William L. Shirer |title=The Rise and Fall of the Third Reich: A History of Nazi Germany |publisher=Simon & Schuster |year=1990 |isbn=978-0-671-72868-7 |title-link=The Rise and Fall of the Third Reich }}
* {{cite book |last1=Smelser |first1=Ronald|author-link1 = Ronald Smelser |last2=Davies |first2=Edward J. | author-link2 = Edward J. Davies |title=The Myth of the Eastern Front: The Nazi-Soviet War in American Popular Culture |date=2008 |publisher=[[Cambridge University Press]] |location=New York |isbn=9780521712316 |edition=Paperback |title-link=The Myth of the Eastern Front}}
* {{cite book |last=Smith |first=Howard |author-link=Howard K. Smith |title=Last Train from Berlin |publisher=Phoenix Press |year=2000 |isbn=978-1842122143 }}
* {{cite book | last=Snyder| first=Timothy | year=2010 | title= Bloodlands: Europe between Hitler and Stalin | location= New York | publisher= Basic Books | isbn=978-0-46503-147-4 }}
* {{cite book | last = Stackelberg | first = Roderick | title = Hitler's Germany: Origins, Interpretations, Legacies | publisher = Taylor & Francis | location = London; New York | year = 2002 | isbn = 978-0-203-00541-5 }}
* {{cite book| last=Stackelberg | first=Roderick | year=2007 | title= The Routledge Companion to Nazi Germany | place= New York | publisher= Routledge | isbn= 978-0-41530-861-8 }}
* {{cite book| last=Stahel | first=David | author-link=David Stahel | year=2009 | title=Operation Barbarossa and Germany's Defeat in the East | location=Cambridge, UK | publisher=Cambridge University Press |isbn=978-0-521-76847-4}}
* {{cite book| last1=Stockings | first1=Craig | last2=Hancock |first2=Eleanor | year=2013 | title=Swastika over the Acropolis: Re-interpreting the Nazi Invasion of Greece in World War II | publisher=Brill |isbn=9789004254572 }}
* {{cite book | last = Stone | first = David | title = Shattered Genius: The Decline and Fall of the German General Staff in World War II | year = 2011 | publisher = Casemate | location = Philadelphia | isbn = 978-1-61200-098-5 }}
* {{cite news |author= Süddeutsche Zeitung |date= 19 June 2021 |title= Überfall auf Sowjetunion 1941: Merkel nennt Jahrestag Anlass für Scham |trans-title= Merkel calls the 1941 attack against the Soviet Union an occasion for shame |language= de |newspaper= Süddeutsche Zeitung |url= https://www.sueddeutsche.de/politik/angela-merkel-zweiter-weltkrieg-sowjetunion-1.5327042 }}
* {{cite book |last=Symonds |first=Craig |author-link=Craig Symonds |title=[[Neptune: The Allied Invasion of Europe and the D-Day Landings]] |publisher=Oxford University Press |year=2014 |isbn=978-0199986118 }}
* {{cite book |last=Taylor |first=Alan |title=History of World War II |publisher=Octopus Books |year=1974 |isbn=978-0706403992 |url=https://archive.org/details/historyofworldwa00tayl }}
* {{cite book |last=Thomas |first=Nigel |title=The German Army 1939–45: Eastern Front 1941–43 |publisher=Osprey Publishing |year=2012 |isbn=978-1782002192 }}
* {{cite book |last1=Ueberschär |first1=Gerd R. |last2=Müller |first2=Rolf-Dieter |title=Hitler's War in the East, 1941–1945: A Critical Assessment |publisher=Berghahn Books |year=2008 |isbn=978-1845455019 }}
* {{cite journal |last=Uldricks |first=Teddy |title=The Icebreaker Controversy: Did Stalin Plan to Attack Hitler? |journal=Slavic Review |date=Autumn 1999 |doi=10.2307/2697571 |volume=58 |issue=3 |pages= 626–643 |jstor=2697571}}
* {{cite book | author = United States Holocaust Memorial Museum | title = Historical Atlas of the Holocaust | year = 1996 | location = New York | publisher = Macmillan Publishing | isbn = 978-0-02897-451-4 | url = https://archive.org/details/historicalatlaso00unit }}
* {{cite book |last= Vogel |first= Detlef |date= 1995 |chapter= The German Attack on Yugoslavia and Greece |editor-last1= Schreiber |editor-first1= Gerhard |editor-last2= Stegemann |editor-first2= Bernd |editor-last3= Vogel |editor-first3= Detlef |series= [[Germany and the Second World War]] |title= The Mediterranean, South-east Europe, and North Africa 1939–1941 |volume= III |publisher= Clarendon Press |location= Oxford |translator1-last= McMurry |translator1-first= Dean S. |translator2-last= Osers |translator2-first= Ewald |translator3-last= Willmot |translator3-first= Louise |translator4-last= Falla |translator4-first= P. S. |isbn=978-0-19-822884-4}}
* {{cite book |last=Waller |first=John |title=The Unseen War in Europe: Espionage and Conspiracy in the Second World War |publisher=Tauris & Company |year=1996 |isbn=978-1-86064-092-6 }}
* {{cite book |last=Weeks |first=Albert |title=Stalin's Other War: Soviet Grand Strategy, 1939–1941 |publisher=Rowman & Littlefield |year=2002 |isbn=978-0-7425-2191-9 }}
* {{cite book | last1=Wegner | first1=Bernd | chapter=Der Krieg gegen die Sowjetunion 1942/43 | editor1=Boog, Horst | editor2=Rahn, Werner | editor3=Stumpf, Reinhard | editor4=Wegner, Bernd | year=1990 | editor-link=Military History Research Office (Germany) | title=Das Deutsche Reich und der Zweite Weltkrieg | volume=VI [Der globale Krieg: Die Ausweitung zum Weltkrieg und der Wechsel der Initiative 1941– 1943] | language=de | location=Stuttgart | publisher=Deutsche Verlags-Anstalt|isbn=978-3-42106-233-8 }}
* {{cite book |last=Weinberg |first=Gerhard |author-link=Gerhard Weinberg |title=A World at Arms: A Global History of World War II |publisher=Cambridge University Press |year=2005 |isbn=978-0521618267 }}
* {{cite book |last=Werth |first=Alexander |title=Russia at War, 1941–1945 |year=1964 |location=New York |publisher=E.P. Dutton |asin=B0000CMAU7}}
* {{cite book |last=Wette |first=Wolfram |author-link = Wolfram Wette |title=The Wehrmacht: History, Myth, Reality |publisher=Harvard University Press |year=2007 |isbn=978-0674025776 |title-link=The Wehrmacht: History, Myth, Reality }}
* {{cite book | last = Wright | first = Gordon | year = 1968 | title = The Ordeal of Total War, 1939–1945 | location = New York | publisher = Harper & Row | isbn = 978-0061314087 | url = https://archive.org/details/ordealoftotalwa00wrig }}
* {{cite book | last = Ziemke | first = Earl F. | year = 1959 | title = The German Northern Theater of Operations, 1940–1945 | url = http://www.history.army.mil/html/books/104/104-23/CMH_Pub_104-23.pdf | location = Washington D.C. | publisher = U.S. Government Printing Office | asin = B0007ETEOM | access-date = 5 November 2016 | archive-date = 21 October 2020 | archive-url = https://web.archive.org/web/20201021045809/https://history.army.mil/html/books/104/104-23/CMH_Pub_104-23.pdf | url-status = dead }}
{{refend}}

===Further reading===
{{Refbegin|30em|indent=yes}}
* {{cite book |last= Bartov |first= Omer |author-link= Omer Bartov |date= 2001 |title= The Eastern Front, 1941–45: German Troops and the Barbarisation of Warfare |location= London |publisher= Palgrave Macmillan |isbn= 978-0-333-94944-3 }}
* {{cite book |last1= Browning |first1= Christopher R. |date= 2007 |title= The Origins of the Final Solution: The Evolution of Nazi Jewish Policy, September 1939 – March 1942 |at= Generalplan Ost: The Search for a Final Solution through Expulsion |author-link1= Christopher Browning |publisher= University of Nebraska Press |url= https://books.google.com/books?id=d9Wg4gjtP3cC&q=Generalplan+Ost |isbn= 978-0803203921 }}
* {{cite book |last= Evans |first= Richard J. |date= 2008 |title= The Third Reich at War |location= London |publisher= Allen Lane |isbn= 978-0-7139-9742-2 }}
* {{cite web |editor-last= Halsall |editor-first= Paul |title= Modern History Sourcebook: The Molotov-Ribbentrop Pact, 1939 |website= [[Internet Modern History Sourcebook]] |publisher= [[Fordham University]] |url= https://sourcebooks.fordham.edu/mod/1939pact.asp |access-date= 20 April 2021 }}
* {{cite journal | last=Hayward | first=Joel| title=Hitler's Quest for Oil: The Impact of Economic Considerations on Military Strategy, 1941–42 | journal=Journal of Strategic Studies | date=1995 | volume=18 | issue=4 | pages=94–135 | url=https://archive.org/stream/JoelHaywardhitlersQuestForOilTheImpactOfEconomicConsiderationsOn/JoelHaywardGermanStrategy_djvu.txt | doi=10.1080/01402399508437621}}
* {{cite book |last= Kershaw |first= Ian |date= 2000 |title= Hitler 1889–1936: Hubris |publisher= Penguin |isbn= 978-0140133639 }}
* {{Cite book |last= Price-Smith |first= Andrew T. |date= 29 May 2015 |title= Oil, Illiberalism, and War: An Analysis of Energy and US Foreign Policy |publisher= MIT Press |isbn= 978-0-262-02906-3 }}
* {{cite web |author= United States Holocaust Memorial Museum |title= Nazi Persecution of Soviet Prisoners of War |url= http://www.ushmm.org/wlc/en/article.php?ModuleId=10007178 |access-date=24 March 2015 |date=20 June 2014 |ref={{sfnRef|"Nazi Persecution of Soviet Prisoners of War"}} }}
* {{cite book |last= Ward |first= John |year= 2004 |title= Hitler's Stuka Squadrons: The Ju 87 at War, 1936–1945 |publisher= MBI Publishing |isbn= 978-0760319918 }}
{{refend}}


|}}
==External links==
{{Spoken Wikipedia|En-OperationBarbarossa-article.ogg|date=10 December 2017}}
* {{Commons category-inline|Operation Barbarossa}}
* {{Wikisource-inline|Führer Directive 21}}
* {{Wikisource-inline|Adolf Hitler's Letter to Benito Mussolini Explaining the Invasion of the Soviet Union}}
* {{Wikisource-inline|The Führer to the German People: 22 June 1941}}
* {{Wikisource-inline|Adolf Hitler's Order of the Day to the German Troops on the Eastern Front (2 October 1941)}}
* {{Wikisource-inline|Adolf Hitler Explains His Reasons for Invading the Soviet Union}}
* [https://web.archive.org/web/20120916093716/http://www1.yadvashem.org/yv/en/holocaust/barbarossa/index.asp?WT.mc_id=wiki Marking 70 Years to Operation Barbarossa] on the [[Yad Vashem]] website
* [http://wayback.vefsafn.is/wayback/20100122183003/http://www.timesonline.co.uk/tol/system/topicRoot/Operation_Barbarossa/ Operation Barbarossa] original reports and pictures from ''[[The Times]]''
* "Operation Barbarossa": {{YouTube|KxsdfcgfSS8}}, lecture by [[David Stahel]], author of ''Operation Barbarossa and Germany's Defeat in the East'' (2009); via the official channel of [[Muskegon Community College]]


{{World War II}}
{{Army Group Rear Area (Wehrmacht)}}
{{Authority control}}


[[Category:Wars and Conflicts]]
{{DEFAULTSORT:Barbarossa}}
[[Category:Operation Barbarossa| ]]<!--leave the empty space as standard-->
[[Category:Articles containing video clips]]
[[Category:Code names]]
[[Category:Invasions of Russia]]
[[Category:June 1941 events]]
[[Category:Military operations involving Finland]]
[[Category:Military operations of World War II]]

Latest revision as of 22:20, 5 July 2022

{{Infobox military conflict

| conflict = Operation Barbarossa

| commander1 =

| commander2 =

| combatant2 = Template:Country data Soviet UnionTemplate:Namespace detect showall Soviet Union | partof = the Eastern Front of World War II

| combatant1 =


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