The Provisional Revolutionary Government of the Republic of South Vietnam , or PRG, was formed on June 8, 1969, as an underground government opposed to the South Vietnamese government of President Nguyễn Văn Thiệu. Delegates of the National Liberation Front, or Vietcong, as well as several smaller groups, participated in the creation of the PRG. The PRG was recognized as the government of South Vietnam by most communist states. It signed 1973 Paris Peace Treaty as a separate party. It became the provisional government of South Vietnam following the military defeat of the Army... of the Republic of Vietnam on April 30, 1975. On July 2, 1976, the PRG and North Vietnam merged to form the Socialist Republic of Vietnam. Predating the PRG was the Alliance of National, Democratic, and Peace Forces made up of anti-government forces and headed by Trinh Dinh Thao. The Alliance were a collection of individuals who wanted a new South Vietnamese Government but disagreed with the ever present Northern Communist presence.
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