Kammala wannan jumla: Kusan shekaru biyu bayan cikakken janyewar Amurka daga Indochina daidai da sharuddan yarjejeniyar zaman lafiya ta Paris ta 1973, PAVN ta kaddamar da wani hari na Spring da nufin hada Vietnam. Ba tare da taimakon kai tsaye na Amurka ba, kuma yana fama da damuwa da raguwar tallafi, ARVN ba ta da shiri don fuskantar PAVN mai himma, kuma duk da fifikon takarda na ARVN, PAVN da sauri ya sami nasara cikin watanni biyu kuma ya sami nasara.
An kama Saigon a ranar 30 ga Afrilu, 1975, wanda ya kawo karshen shekaru 70 na rikice-rikice da suka samo asali daga mamayewar mulkin mallaka na Faransa a karni na 19 da kuma hada Vietnam.