<prompt> Bhala okuqhubekayo kwalesi sigaba - Inhlangano yamaqembu yayisebenza ngesikhathi uNguyễn Văn Thiệu esebenza njengoMongameli futhi yashintsha igama layo yaba yi Social Democratic Alliance ngo-1973. Nokho, ngenqubomgomo yokuzihlanganisa neVietnam eyamukelwa uMongameli wase - U.S. uRichard Nixon, iNingizimu yeVietnam yaqala ukuwohloka ngokungenakugwenywa. Izivumelwano Zokuthula ZaseParis zika-1973 zaba yinguquko enkulu empini, okwabangela ukuphela kokungenela kweMelika eVietnam. Naphezu kwesivumelwano sokuthula phakathi kwamaKhomanisi aseNyakatho yeVietnam namaKhomanisi aseNingizimu yeVietnam, ngo-1975 iNyakatho yeVietnam yaphula ukuthula futhi yaqala ukuthatha iNingizimu yeVietnam. Njengoba i - United States yenqaba ukungenelela okunye, iNingizimu Vietnam yawa ngemva kokuwa kweSaigon  <response>: , okwabangela ukuhlanganiswa kabusha kweVietnam ngaphansi kokubusa kwamaKhomanisi. 