What major event marked the end of the Vietnam War?

The major event that marked the end of the Vietnam War is the Fall of Saigon. This event took place on April 30, 1975, when North Vietnamese forces captured Saigon, the capital of South Vietnam. The fall signified the collapse of the South Vietnamese government and effectively concluded the Vietnam War, leading to the reunification of Vietnam under communist control.

The Geneva Peace Accords, while significant as they laid the groundwork for the end of French colonial rule and the division of Vietnam, did not mark the end of the war itself since the conflict between North and South Vietnam continued for many years afterward. The signing of the Paris Agreement in 1973 sought to establish peace and facilitate the withdrawal of U.S. forces, but it did not succeed in bringing an end to hostilities between the North and South, which persisted until 1975. The Tet Offensive was a major military campaign conducted by North Vietnam in 1968 that marked a pivotal point in U.S. public opinion regarding the war, but it did not mark its conclusion.

In summary, the Fall of Saigon is the definitive event that signifies the end of the Vietnam War, culminating in the victory of North Vietnam and the establishment of a unified Vietnam.