All Warring Parties Sign A Ceasefire Agreement In Paris
Saigon fell on 30 April 1975 to the North Vietnamese army, supported by Viet Cong units. In the early hours of April 29, Schlesinger announced the launch of Operation Frequent Wind, which included the helicopter evacuation of the last U.S. diplomat, military and military personnel from Saigon, which ended in the early morning of April 30. North Vietnam conquered not only South Vietnam, but also the Communists won in Cambodia when the Khmer Rouge conquered Phnom Penh on April 17, as did the Pathet Lao in Laos, which conquered Vientiane on December 2. Like Saigon, U.S. civilians and military personnel were evacuated from Phnom Penh, the U.S. diplomatic presence in Vientiane was significantly degraded and the remaining U.S. personnel declined sharply. The Paris peace accords effectively distanced the United States from the Vietnam conflict. However, the provisions of the agreement were regularly flouted by both the North Vietnamese government and the South Vietnamese government, which did not elicit a reaction from the United States and eventually led the Communists to expand the territory they controlled until the end of 1973.
North Vietnamese forces gradually built their military infrastructure in the areas they controlled and, two years later, were able to launch a successful offensive that ended the status of an independent country in South Vietnam. Fighting began almost immediately after the signing of the agreement, due to a series of reciprocal reprisals, and the war resumed in March 1973.  Nixon had secretly promised that he would use air power to support the South Vietnamese government if necessary. At his confirmation hearings in June 1973, The Minister of Defense, James Schlesinger, was severely criticized by some senators, After saying that he would recommend the resumption of American bombing in northern Vietnam if North Vietnam were to launch a large-scale offensive against South Vietnam, but by August 15, 1973, 95% of american troops and their allies had left Vietnam (north and south) as well as Cambodia and Laos under change of the church. The amendment, passed by the U.S. Congress in June 1973, prohibited other U.S. military activities in Vietnam, Laos and Cambodia unless the president secured congressional approval in advance. During this period, however, Nixon was removed from office because of the Watergate scandal that led to his resignation in 1974. When the North Vietnamese launched their last offensive in early 1975, the U.S. Congress refused to provide additional military support to South Vietnam because it led strong American resistance to the war and the loss of American equipment in the North through the withdrawal of troops from the South.