The Anglo-Soviet Agreement was a declaration signed by the United Kingdom and the Soviet Union on 12 July 1941 to cooperate in the war against Nazi Germany. Shortly after the beginning of Operation Barbarossa, the German invasion of the Soviet Union, both powers pledged to assist each other and not to make a separate peace with Germany.
Winston Churchill with Joseph Stalin and his interpreter at the 1945 Yalta Conference
Operation Barbarossa was the invasion of the Soviet Union by Nazi Germany and many of its Axis allies, starting on Sunday, 22 June 1941, during the Second World War. It was the largest and costliest land offensive in human history, with around 10 million combatants taking part, and over 8 million casualties by the end of the operation.
Clockwise from top left: German soldiers advance through northern Russia German flamethrower team Soviet Ilyushin Il-2s over German positions near Moscow Soviet POWs on the way to prison camps Soviet soldiers fire artillery
The Marcks Plan was the original German plan of attack for Operation Barbarossa, as depicted in a US Government study (March 1955).
Semyon Timoshenko and Georgy Zhukov in 1940
Army general (later Marshal) Zhukov speaking at a military conference in Moscow, September 1941
