Which of the following choices contributed to a breakdown in U.S.-Soviet relations?
A. The U.S. defeated the German military in France.

B. The ideological conflict between the democratic West and Communist Soviet Union.

C. The U.S.’ refusal to help the Soviet Union establish a capitalist economy.

D. The U.S. helped Great Britain obtain nuclear weapons, but refused to help the Soviet Union do the same.

The U.S. helped Great Britain obtain nuclear weapons, but refused to help the Soviet Union do the same, is contributed to a breakdown in U.S.-Soviet relations.

How did the relationship between the US and Soviet Union change after ww2?

Competition between the USSR and the US escalated as World War II changed both countries, making them strong global powers. After the Axis powers were defeated, a political and ideological conflict between the US and the USSR gave place to the beginning of the Cold War.

Thus, option D is correct.

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