katherinebaldwin - The Vietnam War began in 1960 with a guerrilla campaign in South Vietnam and lasted until the last American civilian and military representatives left Saigon in April 1975. For Americans and Vietnamese, the war cost a lot and became an apple of discord. Even now, there are discussions about a "correct" understanding of the origin of the conflict and its lessons. If you are interested in this topic, then https://oivietnam.com/2019/12/what-were-the-causes-of-the-vietnam-war/ will help you better and more clearly understand all the reasons for the formation of war.