when did us involvement in the vietnam war end
Vietnam War Direct U.S. military involvement ended on 15 August 1973.[73] The capture of Saigon by the North Vietnamese Army in April 1975 marked the end of the war, and North and South Vietnam were reunified the following year. The war exacted a huge human cost in terms of fatalities (see Vietnam War casualties). Estimates of the number of Vietnamese soldiers and civilians killed vary from 966,000[35] to 3.1 million.[59] Some 240,000–300,000 Cambodians,[60][61][62] 20,000–62,000 Laotians,[59] and 58,220 U.S. service members also died in the conflict, and a further 1,626 remain missing in action.[A 2]
Vietnam War Beginning in 1950, American military advisors arrived in what was then French Indochina.[63][A 3] Most of the funding for the French war effort was provided by the U.S.[64] U.S. involvement escalated in the early 1960s, with troop levels tripling in 1961 and again in 1962.[65] U.S. involvement escalated further following the 1964 Gulf of Tonkin incident, in which a U.S. destroyer clashed with North Vietnamese fast attack craft, which was followed by the Gulf of Tonkin Resolution, which gave the U.S. president authorization to increase U.S. military presence. Regular U.S. combat units were deployed beginning in 1965. Operations crossed international borders: bordering areas of Laos and Cambodia were used by North Vietnam as supply routes and were heavily bombed by U.S. forces as American involvement in the war peaked in 1968, the same year that the communist side launched the Tet Offensive. The Tet Offensive failed in its goal of overthrowing the South Vietnamese government, but became the turning point in the war, as it persuaded a large segment of the U.S. population that its government's claims of progress toward winning the war were illusory despite many years of massive U.S. military aid to South Vietnam.
Vietnam War Vietnamization was again tested by the Easter Offensive of 1972, a massive conventional NVA invasion of South Vietnam. The NVA and Viet Cong quickly overran the northern provinces and in coordination with other forces attacked from Cambodia, threatening to cut the country in half. U.S. troop withdrawals continued. American airpower responded, beginning Operation Linebacker, and the offensive was halted. However, it became clear that without American airpower South Vietnam could not survive. The last remaining American ground troops were withdrawn by the end of March 1973; U.S. naval and air forces remained in the Gulf of Tonkin, as well as Thailand and Guam.[255]
Vietnam War In the United States, South Vietnam was perceived as doomed. President Gerald Ford had given a televised speech on 23 April, declaring an end to the Vietnam War and all U.S. aid. Frequent Wind continued around the clock, as North Vietnamese tanks breached defenses on the outskirts of Saigon. In the early morning hours of 30 April, the last U.S. Marines evacuated the embassy by helicopter, as civilians swamped the perimeter and poured into the grounds. Many of them had been employed by the Americans and were left to their fate.