Question

Why did tensions increase between the Soviet Union and the United
States after World War II?

Answer 1

How to implement the agreement at Yalta was the purpose of Potsdam and tensions between Russia and the U.S. grew between both nations; Truman was now president of the U.S.and was disturbed by Stalin's movement into eastern European nations before WW II's end.

Step-by-step explanation:

Answer 2

Tensions and suspicions between the United States and the Soviet Union grew partly during WWII because of Soviet disregard to Allied goals, and dramatically increased in the post-war world when the spread of communism seemed to be threatening the free world that Franklin D Roosevelt had envisioned.

Step-by-step explanation:

Hope that helped :3