Why did the US get involved in Vietnam? All the US wanted to do was to prevent those areas in the world that fell under the influence of communism. In the late 40s and early 50s, The Cold War was at its peak, when the United States asked America for help. To the United States government, Vietnam was just another Korea.
Once America became involved, it made attempts to make sure its investments were protected from loss by sending more and more aid.
The Domino Theory then gained some wide acceptance by the US politicians. This was the notion that every neighboring country will fall to communism the moment one country has fallen. According to a 1965 book written by John Kennedy, the South Vietnam was instrumental to the liberation of every part of the whole South East Asian region, despite the fact that South Vietnam was far free under Diem.
The United States military advisers were deployed to provide the needed help to the military outfit of South Vietnam. When he was made president in 1961, the number of military advisors were increased from 700-15, 000. The failure of the Bay of Pigs caused Kennedy a whole lot of embarrassments and he needed to revenge for the construction of the famous Berlin Walls.
The building of strategic hamlets were ordered by Kennedy. These villages were some of the heavily protected villages that South Vietnam people were relocated. The main idea was to see that they were moved away from the Vietcong and given the necessary protection by the AVRN.
Vietnam people were much opposed to this policy, they never wanted to leave their villages, and several of them had to turn to the Vietcong.