Kammala jumla mai zuwa: Jamus ta karya Yarjejeniyar Molotov-Ribbentrop kuma ta mamaye Tarayyar Soviet a ranar 22 ga Yuni 1941 ta fara abin da aka sani a cikin USSR a matsayin Babban Yaƙin Patriotic. Sojojin Red sun dakatar da sojojin Jamus da ba a iya cin nasara ba a yakin Moscow. Yakin Stalingrad, wanda ya kasance daga ƙarshen 1942 zuwa farkon 1943, ya yi mummunan rauni ga Jamus daga abin da ba su taɓa farfadowa ba kuma ya zama juyi a cikin yaƙin. Bayan Stalingrad, dakarun Soviet sun wuce ta Gabashin Turai zuwa Berlin kafin
Jamus ta mika wuya a shekara ta 1945. Sojojin Jamus sun sha wahala kashi 80% na mutuwar sojoji a Gabashin Gabas. Harry Hopkins, babban mai ba da shawara kan harkokin waje ga Franklin D. Roosevelt, ya yi magana a ranar 10 ga Agusta, 1943 game da rawar da USSR ta taka a yakin.