The most significant reason for the United States to involve itself in Vietnam in the 1960s was out of fears that if Vietnam fell to communism then other countries would too. This belief was part of the broader "Domino Theory," which posited that the spread of communism in one country could lead to its spread in neighboring countries. The U.S. aimed to contain communism and prevent it from gaining footholds in Southeast Asia, leading to increased involvement in Vietnam.
What was the most significant reason for the United States to involve itself in Vietnam in the 1960s?
The American people demanded the government support Vietnam.
It was a staging area to resupply the N. Koreans.
American businesses in Vietnam were threatened by the Communists.
Out of fears that if Vietnam fell to communism then other countries would too.
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