why did the soviet union join the allies?\nstalin was afraid of hitler.\nhitler had broken a pact and…

why did the soviet union join the allies?\nstalin was afraid of hitler.\nhitler had broken a pact and attacked.\nhitler was becoming too powerful in eastern europe.\nstalin wished to take control of territories captured by germany.
Answer
Answer:
Hitler had broken a pact and attacked.
Brief Explanations:
The Molotov - Ribbentrop Pact was broken when Germany launched Operation Barbarossa and invaded the Soviet Union in 1941, leading the Soviet Union to join the Allies to fight against Germany.