Nonetheless, the final piece of the Vietnamese strategy emerged when Vietnam announced the formation of the Kampuchean United Front for National Salvation (KUFNS) in the "liberation zones" of Kampuchea. Hanoi claimed that KUFNS was an independent Kampuchean communist movement, with members drawn from all walks of life. Heng Samrin, formerly a member of the Khmer Rouge and commander of the KRA 4th Division, was the chairman of the KUFNS Central Committee. Previously, the KUFNS was known as the Provisional Revolutionary Government of Kampuchea (PRGK), which consisted of 300 former Khmer Rouge cadres who defected to Vietnam. The PRGK regularly sent representatives abroad in search of support, before Vietnam abandoned the "people's war" concept in favour of a conventional military campaign.