A ranar 10 ga Janairun 1979, bayan sojojin Vietnam da KUFNS (Kampuchean United Front for National Ceto) suka mamaye Cambodia tare da hambarar da Khmer Rouge, an kafa sabuwar Jamhuriyar Jama'ar Kampuchea (PRK) tare da Heng Samrin a matsayin shugaban kasa.Dakarun Khmer Rouge na Pol Pot sun ja da baya cikin sauri zuwa cikin dazuzzukan da ke kusa da kan iyakar Thailand.Khmer Rouge da PRK sun fara gwagwarmaya mai tsada wanda ya shiga hannun manyan kasasheChina , Amurka da Tarayyar Soviet .Mulkin Khmer People's Revolutionary Party ya haifar da wani yunkuri na gungun manyan kungiyoyin gwagwarmaya guda uku - FUNCINPEC (Front Uni National pour un Cambodge Indépendant, Neutre, Pacifique, et Coopératif), KPLNF (Khmer People's National Liberation Front) da PDK ( Jam'iyyar Democratic Kampuchea, Khmer Rouge karkashin shugabancin Khieu Samphan na maraice).^[98] "Dukkan ra'ayoyin da ba su dace ba game da dalilai da yanayin makomar Cambodia".Yakin basasa ya raba 'yan kasar Cambodia 600,000, wadanda suka yi gudun hijira zuwa sansanonin 'yan gudun hijira da ke kan iyaka zuwa Thailand kuma an kashe dubunnan mutane a fadin kasar.^[99] An fara ƙoƙarin zaman lafiya a birnin Paris a cikin 1989 a ƙarƙashin Ƙasar Cambodia, wanda ya ƙare bayan shekaru biyu a cikin Oktoba 1991 a cikin cikakkiyar sulhu.An bai wa Majalisar Dinkin Duniya wa'adin aiwatar da tsagaita bude wuta tare da tunkarar 'yan gudun hijira da kwance damarar makamai da aka fi sani da Hukumar Rikon kwarya ta Majalisar Dinkin Duniya a Cambodia (UNTAC).^[100]