Soviet Union and Nazi Germany relations

The Soviet Union and Nazi Germany initially signed the Molotov-Ribbentrop Pact in 1939, a non-aggression agreement promising neutrality. They secretly divided Eastern Europe into spheres of influence, allowing both to expand without conflict. However, in 1941, Nazi Germany broke the pact by invading the Soviet Union, leading to brutal fighting on the Eastern Front. This shift turned former allies into enemies in World War II, fundamentally impacting their relations and the course of the war.