Question

The United States became involved in Vietnam because Americans feared that

France would not support the United States in the arms race against the
USSR.

Laos and Cambodia would become Communist if Vietnam became
Communist.

The Vietnamese would send someone to the moon before the United States
could.

Answer 1

The second statement is correct.

- The United States became involved in Vietnam largely because of the Cold War policy of containment and the “domino theory” — the belief that if South Vietnam fell to communism, neighboring countries (like Laos and Cambodia) would follow. Preventing the spread of communism in Southeast Asia was a primary motivation.

- The first statement is incorrect. Early U.S. involvement actually included backing France financially and materially during the First Indochina War; it was not driven by a fear that France would not support the U.S. in an arms race with the USSR.

- The third statement is false and anachronistic. The space race was between the U.S. and the USSR; there was no concern that Vietnam would beat the U.S. to the moon.