Simply because they shared a common enemy.
It was part of soviet union.
The Soviet Union
United States, British Empire, Soviet Union.
The Soviet Union
Soviet Union
Germany broke the Non-Agression pact with the Soviet Union and attacked them therefore Soviets joined the allies to fight Germany.
they had a common enemy germany
The Russians Captured Berlin On April 30, 1945.
During WW II, the Soviet Union was one of the allied countries which helped to defeat Nazi Germany.
The Soviet Union
Soviet Union
The soviet Union was not neutral during World War 2, it was part of the Allied forces.