The People's Republic of Kampuchea (PRK) was a partially recognised state in Southeast Asia supported by Vietnam which existed from 1979 to 1989. It was founded in the country, Cambodia, by the Kampuchean United Front for National Salvation. The Kampuchean United Front for National Salvation is a group of Cambodian communists who were not satisfied with the Khmer Rouge due to its terrible rule of Cambodia and left it after the Cambodian–Vietnamese War of Democratic Kampuchea, Pol Pot's government. Brought about by an invasion from Vietnam, which routed the Khmer Rouge armies, it had Vietnam and the Soviet Union as its main allies.