President Eisenhower sent US advisers to Vietnam in 1955. President Kennedy sent the Special Forces (Green Beret) to Vietnam in 1961. President Johnson sent US Regulars to Vietnam in 1965.
1965
Vietnam
See Vietnam War casualties by year (posted by 1/69th Armor Association).
Begin with websites: Statistics about the Vietnam War & Vietnam War Time-Line
US Servicemen had been fighting communists in South Vietnam since 1955.
Trench Foot
The US asked them to.
1965
Vietnam
President Eisenhower sent US troops to Vietnam in 1955, President Ford pulled out the last US troops in 1975.
See Vietnam War casualties by year (posted by 1/69th Armor Association).
The extraction of US troops from Vietnam signaled the end of the Vietnam War.
President Eisenhower.
The US Civil War (1861-1865) & the Vietnam War (1961-1975).
Approximately 2,594,000 US servicemen served in the Vietnam War.
US Troops had been in South Vietnam since the 1950's. What made the US change the war from a guerrilla war into a conventional war, was the "Tonkin Gulf Incident" on 02 & 04 August 1964. The Tonkin Gulf Resolution gave authorization for LBJ to send in CONVENTIONAL US combat troops;which began arriving in 1965. The same year LBJ authorized Operation Rolling Thunder, the air war against North Vietnam. Vietnam was no longer a guerrilla war!
The war transitioned from a guerrilla war into a conventional war.
Australia was an ally of the US and sent troops to fight in both WWII and Vietnam.