Option D: U.S. foreign policy was rooted in the idea that the spread of
communism must be contained.
The United States invaded Vietnam with the main purpose of preventing a communist takeover of the region. In this regard it failed: In July 1976 the two Vietnams united under the banner of communism. neighboring countries of Laos and Cambodia have also fallen into communism.
In march 1965, Johnson, with solid support from the American people, decided to send US troops to fight in Vietnam. by June, 82,000 combat troops had been stationed in Vietnam, and by the end of 1965, military leaders had requested an additional 175,000 to assist the struggling south Vietnamese troops.
The United States participated in the Vietnam war to prevent the spread of communism, but foreign policy, economic interests, national fears, and geopolitical strategies also played an important role. learn why a country little known to most Americans defined the era.
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