1954 A+
Ike began sending them over in 1955.
Involvement in South Vietnam began in 1953 under the Eisenhower administration with 900 military advisors and US Air Force pilots flying for CAT (Air America). When President Kennedy was elected in November of 1960, Ike advised him that Vietnam and Southeast Asia were the critical area and needed a high priority for military assistance.
The Korean war ended in 1953, and US military involvement in Vietnam did not begin until 1965, although American Military Advisors and Covert Operatives had been active in Vietnam since 1954.
Communist influence & military infiltration into South Vietnam began almost immediately after the Geneva Accords divided the country into North & South in 1954/55. The war grew from that point.
It began in 1957 when President Eisenhower sent the first U.S. advisers to train the South Vietnamese armed forces in counter-insurgency tactics. The first big escalation was in 1965 under President Johnson, with transfer of the 173d Airborne Brigade, followed by several entire combat divisions.
Vietnam became Vietnam in 1975. Prior to 1975, there were two nations: North Vietnam & South Vietnam. In the spring of 1975, South Vietnam experienced a conventional military invasion consisting of tanks and infantry from North Vietnam. This invasion ended in a military victory for North Vietnam on 30 April 1975. Therefore, on or about 30 April 1975, North & South Vietnam began it's transition from TWO COUNTRIES into one country (nation)...Vietnam.
The Tet Offensive was a military campaign during the Vietnam War that began on January 31, 1968 by the forces of the National Liberation Front for South Vietnam. The purpose was to displace the invading army presently stationed in South Vietnam and regain control of the country by the Vietnamese.
When communist infiltrators began entering South Vietnam in 1955.
Initially, President Kennedy, then escalated by President Johnson. It shoud be noted however that when Kennedy took office in 1961, US Military Advisors were already present in Vietnam, Laos and Cambodia as part of the Military Assistance Advisory Group (Indochina) (MAAG). The CIA and Air America was fully involved alongside of the French Forces for the eight years of the Eisenhower administration and the US Military was training South Vietnamese not only in country but also at Stateside Military schools. By June of 1955 there were already 740 Advisors on duty in Vietnam with South Vietnamese units. South Vietnam and the French also had an Intelligence Unit provided by the US Army and the Naval Security Group and the National Security Agency, and an extensive Aviation presence in country long before Kennedy's election. For the US, Vietnam really began in September of 1950 under Truman with a 10 million dollar loan to the French of WWII surplus military equipment. Since his mantra was The Buck Stops Here I suppose we can blame the whole mess on Harry.
It was president Richard Nixon who finally pulled all U.S troops from Vietnam.
Dwight Eisenhower (1890-1969) was President in 1959 when the Vietnam War began. About 900 US military advisors were sent to the area. President John F. Kennedy supported the anti-communist regime of South Vietnam, providing increased aid and support. In 1964, President Lyndon Johnson used the Gulf of Tonkin incident to push Congress to authorize the direct deployment of US troops.
The United States' involvement in Vietnam began in the late 1950s as part of its broader strategy to contain communism during the Cold War. Initially, the U.S. provided economic and military aid to the French colonial forces fighting against the Viet Minh, a communist-led nationalist group. After France's withdrawal in 1954, the U.S. supported the anti-communist government of South Vietnam, escalating its commitment with military advisors and support in the early 1960s. This involvement ultimately deepened, leading to full-scale military engagement following the Gulf of Tonkin incident in 1964.