When they were evacuating Saigon during the collapse in April 1975. Although President Ford's use of US Marines, Navy, and Air Force in May during the Mayaquez incident might be the official date. This latter action was involving Cambodian forces and in the sea off Vietnam...possibly because US forces were pulled from the Vietnam AO (Area of Operations) and used for this drama, it is considered part of the war.
A military note of interest: Apparently some US jets strafed and bombed some Cambodian Naval patrol boats during the action. One or two were sunk, aerial photos identified them as "ex-US Navy Swift Boats" (PCF-Patrol Craft Fast) which were of the type used by the USN Brown Water Navy's riverine forces during the Vietnam War.
The drawal commenced in 1969, from the peak strength of 500,000 US servicemen.
Canada was officially neutral during the Vietnam War; however thousands of Canadians enlisted into the US military to help fight the war; this action was rumored to be some of Canada's patriot's efforts to offset the number of US draft dodgers entering Canada. Over 100 Canadian men were killed in the Vietnam War.
US Forces withdrew in March of 1973; South Vietnam fell to Communist North Vietnam in April 1975.
The fear of being invaded was not a justification for the increase in US involvement in Vietnam. The US withdrew from Vietnam in 1975.
After the US withdrew from Vietnam the Vietcong came into power. South Vietnam fell under communist rule by the Vietcong.
Yes
No. The US 'officially doesn't 'recognize' additional citizenship(s) a US citizen may have.
The US has officially only lost one war: The Vietnam War.
Officially, the North Vietnamese. Tacitly, The Soviet Union and China.
It was either the "Bill of Rights" or the Deceleration of Independence.
The countries that were actually "physically" involved, and were bombed or had US aircraft crash into them, whether they were "officially" in the war or not, were: Lao's, Cambodia, North Vietnam and South Vietnam.
All were officially neutral.
Officially, no
President Truman officially integrated the US Military in 1947 (along with creating the US Air Force-Separating it from the US Army). The Korean War (1950-1953) was the FIRST US war in which the US Military was officially integrated.
Officially, the US has supported all anti-communist leadership of the Republic of South Vietnam, commencing with the first president, Mr. Ngo Dinh Diem, in 1955.
Man's best friend was in Vietnam; over 5,000 of them. 3,747 of whom were documented. Approximately 73 US servicemen assigned as dog handlers and 43 war dogs were killed in Vietnam. US military K9s were officially classified as military working dogs in Vietnam.
Two separate countries: South Vietnam was officially called RVN (Republic of South Vietnam). When US servicemen landed in country, they were greeted with "Welcome to the Republic of South Vietnam" (enjoy your stay).