The Soviet Union
The non-aggression pact between Germany and the Soviet Union.
The Soviet Union had originally signed a non-aggression pact with Germany, but Hitler broke the pact and invaded the Soviet Union.
The German-Soviet Non-aggression Pact was also called Nazi-soviet Non-aggression Pact, German-soviet Treaty Of Non-aggression, Hitler-Stalin Pact, or the Molotov-Ribbentrop Pact. It was signed in 1939 and was a non aggression pact between Germany and the Soviet Union that was signed a few days before the beginning of World War II. It divided eastern Europe into German and Soviet spheres of influence. Answer: The division of Poland between Germany and the Soviet Union
The Soviet Union and Joseph Stalin.
Germany
The Soviet Union and Germany had non-aggression pact called the Molotov-Ribbentrop pact.
To invade Poland; to prevent a war with the Soviet Union in 1939. (The Soviets fought the Germans from 1941-1945). It might be better asked as to why the Soviet Union signed Russian-German Non-Aggression Pact, in that the pact was a German proposal.
It was simply called the Nazi-Soviet Non-Aggression Pact
Germany.
Germany made one with the Soviet Union (Molotov-Ribbentrop pact) on 23/8 1939. Also Poland had a non-aggression pact with Stalin's Soviet, but violated in Sept 1939.
Because of the pact, Hitler felt he had secured Germany's border with the Soviet Union.