The USA’s fear of communism caused American troops to go into Vietnam under President Kennedy in 1961. A war fought nightly on TV, it engendered a huge anti-war movement. By 1973, Nixon had resigned and the US was forced to withdraw in 1975. From British Pathé TV's Military Collection. In this episode: Vietnam’s early history, its people, dynastic struggles and invasions. The French, the Japanese in WWII and the rise of communism in 1941. The emergence of Ho Chi Minh, nationalism into communism. The effect of the domino theory, JFK’s assassination and the Gulf of Tonkin incident. The US drawn into bloody conflict.