Vietnamese invasion People's Republic of Kampuchea

vietnamese policymakers opted military solution and, on 22 december 1978, vietnam launched offensive intent of overthrowing democratic kampuchea. invasion force of 120,000, consisting of combined armour , infantry units strong artillery support, drove west level countryside of cambodia s southeastern provinces. after seventeen-day blitzkrieg, phnom penh fell advancing vietnamese on 7 january 1979. retreating armed forces of democratic kampuchea (rak) , khmer rouge cadres burnt rice granaries, which, along other causes, provoked severe famine on cambodia beginning in last half of 1979 , lasted until mid-1980.

on 1 january 1979, salvation front s central committee proclaimed set of immediate policies applied in areas liberated khmer rouge. first communal kitchens abolished , buddhist monks brought every community reassure people. of these policies establish people s self-management committees in localities. these committees form basic administrative structure kampuchean people s revolutionary council (kprc), decreed on 8 january 1979, central administrative body prk. kprc served ruling body of heng samrin regime until 27 june 1981, when new constitution required replaced newly elected council of ministers. pen sovann became new prime minister. assisted 3 deputy prime ministers – hun sen, chan sy, , chea soth.