It ended officially with the Paris Peace Accords negotiated by Henry Kissenger and ratified by the U.S. Congress.
1955.
President Nixon ended the US offensive participation in the war. President Ford conducted US defensive operations for rescue and evacuation, until the end of the war on 30 April 1975.
No.
The TET offensive of 1968 is considered by many to have been the beginning of the US's end of involvement in Vietnam.
They approved the funding.
The U.S. surrendered in the Vietnam War with the fall of Saigon on April 30, 1975. Saigon, the capital of South Vietnam, was captured by North Vietnamese forces, marking the end of the conflict and leading to the reunification of Vietnam under communist control. This event effectively concluded the U.S. military involvement in Vietnam.
Containment .
President Eisenhower sent US Military Advisers to South Vietnam in 1955.
{| |- | The US involvement in Vietnam began in the 60's. The French had been involved in the war for a long time. Vietnam War went forward for a decade. |}
Australia was an ally of the US and sent troops to fight in both WWII and Vietnam.
The United States only committed large numbers of American troops in Vietnam.
1. From a guerrilla war to a conventional war. 2. From war in only South Vietnam to open warfare against North Vietnam.