The Vietnam War began as an anti-colonial independence movement led by Ho Chi Minh against French rule. After World War 2, the French tried to reassert control over Vietnam but faced resistance from Ho Chi Minh's Viet Minh forces. The United States intervened on France's side and continued supporting South Vietnam after the 1954 Geneva Accords split the country in two. US involvement escalated throughout the 1960s, but the 1968 Tet Offensive was a turning point that turned US public opinion against the war. Although the US withdrew in 1973, the war continued between North and South Vietnam until the South surrendered in 1975.