Rubuta ci gaba don wannan sakin layi - Tarayyar jam'iyyun ta yi aiki a lokacin da Nguyễn Văn Thiệu ke shugabancin shugaban kasa kuma ya canza sunansa zuwa "Social Democratic Alliance" a shekarar 1973. Koyaya, tare da manufar Vietnamization da Shugaban Amurka Richard Nixon ya ɗauka, Kudancin Vietnam ba tare da ɓata lokaci ba ya fara rushewa. Yarjejeniyar Zaman Lafiya ta Paris ta 1973 ta kasance wani juyi a cikin yaƙin, wanda ya haifar da ƙarshen tsoma bakin Amurka a Vietnam. Duk da yarjejeniyar zaman lafiya tsakanin kwaminisanci na Arewacin Vietnam da jari hujja ta Kudu Vietnam, a cikin 1975 Arewacin Vietnam ta karya zaman lafiya kuma ta fara karɓar ikon Kudancin Vietnam. Tun da Amurka ta ki sake shiga tsakani, Kudancin Vietnam ta rushe bayan faduwar Saigon
, wanda ya haifar da sake hadewar Vietnam a karkashin mulkin kwaminisanci.