<prompt> Qedela le nkulumo elandelayo: Ekuqaleni, iNyakatho yeVietnam eyayibuswa amaKhomanisi yayingumlingani oqinile wamaKhmer Rouge ngesikhathi ilwa neRiphabhuliki yamaKhmer kaLon Nol phakathi nempi yombango ka-1970 kuya ku-1975. Kwaba kuphela ngemva kokuba amaKhmer Rouge ethathe amandla lapho izinto zaqala ukuba zimbi khona, lapho ngo-May 1, 1975 ngosuku olulandelayo ngemva kokubhujiswa kweKhmer Rouge  <response>: ISaigon yawa, amasosha aseKhmer Rouge ahlasela iziqhingi zasePhu Quoc naseTho Chau, abulala izakhamuzi zaseVietnam ezingaphezu kwamakhulu amahlanu; ngemuva kokuhlaselwa, iziqhingi zaphinde zabanjwa ngokushesha yiHanoi. Ngisho nangalesosikhathi, ukusabela kokuqala kwamaVietnam kwakungacacile, futhi kwathatha isikhathi eside ukuba iVietnam isabele ngamandla, ngoba umfutho wokuqala kwakuwukuxazulula izindaba ngaphakathi emkhakheni womkhaya. 