Role of the United States in the Vietnam War the presidency unopposed. With the installation of the Thieu and Ky government (the Second Republic), the U.S. had a pliable, stable, and semi-legitimate government in Saigon with which to deal. With the advent of "Rolling Thunder", American airbases and facilities needed to be constructed and manned for the aerial effort. On March 8, 1965, 3,500 United States Marines came ashore at Da Nang as the first wave of U.S. combat troops into South Vietnam, adding to the 25,000 U.S. military advisers already in place. The US Government deployment of ground forces to Da Nang had not been consulted with the
1961 in the Vietnam War implementation of the expanded military aid to South Vietnam. He listed three tenets: (1) We have great authority from the President; (2) Money is no object; and (3) The one restriction is that combat troops will not be introduced. In closing the meeting McNamara said the job of the U.S. military "was to win in South Viet Nam and if we weren't winning to tell him what was needed to win." Cryptologist Corporal James T. Davis became the first American member of the United States Army Security Agency to be killed in Vietnam. He and 8 South Vietnamese soldiers were