The Viet Minh was a national independence coalition formed at Pac Bo by Ho Chi Minh on 19 May 1941. The organization was a united front of anti-imperialist parties, and it had existed since August 1935, when the original League for the Independence of Vietnam was founded in Nanjing, China. However, it was not until 1941 that the Indochinese Communist Party revitalized the Viet Minh, which not only resisted French imperialism in French Indochina, but also resisted Japanese occupation during World War II. In the years following the war, the Viet Minh conducted guerrilla warfare against the French Army and the French colonial authorities, culminating in a decisive victory at Dien Bien Phu and a peace treaty with the French that guaranteed the independence of Vietnam. The Viet Minh coalition disbanded at the end of the First Indochina War, with Vietnam being divided into North Vietnam and South Vietnam.