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Operation Barbarossa: Germany invades USSR

Barbarossa: 3.6 million men invade the USSR on a 2,900 km front — the largest invasion ever mounted, on the exact anniversary of France’s 1940 armistice.

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Map: Operation Barbarossa: Germany invades USSR, 22 June 1941
22 JUNE 1941 · THE WAR ROOM — WW2, 1936–1945

The moment in context

The German plan rested on a single gamble, which was that the Soviet state would collapse if its frontier armies were destroyed quickly enough. Around 3.6 million Axis troops crossed the border in the largest invasion in history, and three army groups drove toward Leningrad, Moscow, and Ukraine. German mobile formations trapped and destroyed enormous Soviet forces at Minsk, Smolensk, and Kiev, taking more than three million prisoners by winter. Each victory seemed to confirm the plan, yet the state behind those armies did not break, and the deeper the Germans advanced, the more clearly the limits of their own supply became a problem they could not solve.

From Operation Barbarossa, chapter 6 of The War Room — WW2, 1936–1945 (DEC 1941).

Teach this in 5 minutes

Then ask the room: Every military expert — including most Allied ones — predicted Soviet collapse within weeks. Why were they all wrong? The argued answer is on the chapter page →

The atlas that shows it

The War Room — WW2, 1936–1945
15 CHAPTERS · AN INTERACTIVE SITUATION MAP

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