Answer:
Preventing the spread of communism
Explanation:
The role of the united state in Vietnam war began after the world warII. US mission was to restrict the communist domination that was present in Vietnam government, this was because communism could easily spread to the Neighbouring countries which would result to a change in the balance of power throughout Southeast Asia.
The correct option is: To prevent the spread of communism.
The U.S. entered the Vietnam War in an attempt to prevent the spread of communism, but foreign policy, economic interests, national fears, and geopolitical strategies also played major roles. Learn why a country that had been barely known to most Americans came to define an era.
In March 1965, Johnson made the decision—with solid support from the American public—to send U.S. combat forces into battle in Vietnam. By June, 82,000 combat troops were stationed in Vietnam, and military leaders were calling for 175,000 more by the end of 1965 to shore up the struggling South Vietnamese army.
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