Kammala wannan magana: Lokacin da Lon Nol ya hau mulki a 1970, gwamnatin Jamhuriyar Khmer ta kaddamar da yakin neman zabe don nuna 'yan kabilar Vietnam a matsayin wakilai na Vietcong. Kimanin 'yan Vietnam 30,000 aka kama kuma aka kashe su a kurkuku, yayin da wasu dubun-dubatar suka gudu zuwa Vietnam. Shekaru biyar bayan haka a 1975, kasa da 'yan Vietnam 80,000 ne suka rage a Cambodia lokacin da Khmer Rouge suka kwace mulki. Kusan kashi uku cikin huɗu na su an kore su zuwa Vietnam, kuma ragowar 20,000 da suka rage su ne waɗanda ke da ƙabilar Vietnam da Khmer. Wadanda suka rage gwamnatin ta kashe su. Inã rantsuwa da sa'a
Sojojin Vietnam sun shiga Kambodiya a shekarar 1979, kusan dukkanin 'yan kasar Vietnam na Kambodiya sun yi gudun hijira ko kashe su. Vietnam ta kafa sabon tsarin da aka sani da Jamhuriyar Jama'ar Kampuchea (PRK), kuma an nada masu ba da shawara na Vietnam a cikin sabon gwamnatin gwamnati. A cikin 1983, gwamnatin PRK ta tsara wata manufa ta hukuma don ƙarfafa tsoffin mazaunan Vietnamese na Kambodiya su dawo su zauna. Baƙi baƙi waɗanda ba su da alaƙar dangi da Kambodiya suma sun zo su zauna a ƙasar, saboda akwai ƙarancin kula da kan iyaka don ƙuntata bakin haure na Vietnam daga shiga ƙasar. An amince da 'yan Vietnam a matsayin' yan tsiraru a karkashin tsarin PRK, kuma an kafa Ƙungiyoyin Vietnamese na Ƙasar waje a wasu sassan Cambodia tare da yawan mutanen Vietnam. Gwamnatin PRK ta kuma ba su katin shaida har zuwa lokacin da sojojin Vietnam suka janye a shekarar 1990.