Answer :
The correct answer is:
- The refusal of the Soviet Union to withdraw troops from Eastern Europe
After World War II, the Soviet Union's refusal to withdraw troops from Eastern Europe significantly impacted American foreign policy. This led to the beginning of the Cold War, a period of political tension and military rivalry between the United States and the Soviet Union. The U.S. adopted a policy of containment to prevent the spread of communism, which shaped its foreign policy decisions for decades.
Another potential answer could be:
- The growth of a revolutionary movement in colonies owned by France
The growth of revolutionary movements in French colonies contributed to a change in American foreign policy by leading to increased support for decolonization efforts. The U.S. began to emphasize self-determination and support for independence movements in former colonies, which influenced its foreign relations and global stance during this period.