The document summarizes the history of American involvement in Vietnam. It explains that Vietnam was a French colony until WWII, after which the Vietnamese resisted French rule under Ho Chi Minh. The US initially intervened to prevent a communist takeover of South Vietnam following the Geneva Accords that divided Vietnam in two. Despite US bombing campaigns and growing involvement, popular support for the war declined as the human and financial costs mounted. Ultimately, the US failed to achieve its objectives and withdrew from Vietnam.