During the Cold War, what was one main concern of the United States?

The primary concern of the United States during the Cold War was the spread of Communism. This period, starting after World War II and extending into the early 1990s, was characterized by a geopolitical struggle between the U.S. and its allies and the Soviet Union along with its satellite states. The U.S. believed that the expansion of Communism posed a threat to democracy and capitalism not just in Europe but globally.

As a response, the United States developed various strategies, such as the policy of containment, which aimed to prevent the further spread of Communism into areas where it might take root. This involved a range of actions from diplomatic and economic measures to military interventions, as seen in conflicts like the Korean War and the Vietnam War.

While the rise of democracy and nuclear disarmament were also significant topics during this era, they were not the central concern in the same way that the spread of Communism was. The expansion of capitalism was more an ideological framework that the U.S. sought to promote as an alternative to Communism. Thus, the focus on stopping the spread of Communism defined much of America's foreign policy during the Cold War.