Answer:
During the 1960s and 1970s, the primary reason for United States involvement in southeast Asia was to — stop the spread of communism. During the Cold War era, the United States and the Soviet Union were reluctant to become involved in direct military conflict mainly because of —
Explanation:
United States involvement in Southeast Asia was because of the North Korean attempts to unify the peninsula which challenged the U.S. policy of containment.
It was a foreign policy laid out by George Kennan which stated that communism needed to be contained and isolated or else it would spread to neighboring countries.
Therefore, the prevention of the spread of communism was the primary reason for United States involvement in Southeast Asia.
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