Final answer:
The Vietnam War officially ended in 1975 with the fall of Saigon and the unification of Vietnam under a communist government, following the U.S. military withdrawal in 1973.
Step-by-step explanation:
The Vietnam War officially ended in 1975 when North Vietnamese troops captured Saigon, the capital of South Vietnam. The war had begun much earlier, with U.S. military involvement starting in the early 1960s. After years of fighting, failed peace negotiations, and a temporary cease-fire agreement, the war finally came to an end with the fall of Saigon and the reunification of Vietnam under a communist government.
The Vietnam War finally concluded in 1975, following a series of events that led to the fall of Saigon. After signing the Paris Peace Accords in January 1973, which marked the end of American military involvement, the war persisted until the North Vietnamese launched a full-scale invasion in March 1975. This invasion culminated in the capture of Saigon by North Vietnamese tanks in April 1975, leading to the unconditional surrender of South Vietnamese forces to the North Vietnamese. Consequently, the country was united under a communist government, signifying the end of a decades-long conflict that deeply impacted the region and the United States.