Yawan jama'a da ƙarancin filaye sun haifar da faɗaɗa kudancin Vietnam.A shekara ta 1471, sojojin Dai Viet karkashin jagorancin sarki Lê Thánh Tông sun mamaye Champa tare da kwace babban birnin kasar Vijaya.Wannan taron ya ƙare da kyau Champa a matsayin masarauta mai ƙarfi, kodayake wasu ƙananan jahohin Cham da suka tsira sun daɗe na wasu ƙarni.Ya fara tarwatsa mutanen Cham a kudu maso gabashin Asiya.Tare da mulkin Champa akasarin halakar da mutanen Cham da aka yi gudun hijira ko kuma aka danne su, mulkin mallaka na Vietnam na abin da ke tsakiyar Vietnam ya ci gaba ba tare da juriya ba.Duk da haka, duk da kasancewar mazauna Vietnam sun fi yawa da kuma hadewar yankin Cham na farko a cikin al'ummar Vietnam, yawancin mutanen Cham sun kasance a Vietnam kuma yanzu ana daukar su daya daga cikin manyan 'yan tsiraru a Vietnam na zamani.Sojojin Vietnam sun kuma kai farmaki a Mekong Delta, wanda daular Khmer da ke ruguzawa ba za ta iya karewa ba.