Mezue ahịrịokwu na-esonụ: N'ihi ya, Nixon (ma ọ bụ onye nọchiri ya bụ Gerald Ford) enweghị ike imezu nkwa o kwere Thieu. N'otu oge ahụ, enyemaka sitere na Soviet Union nye North Vietnam mụbara. Ebe ọ bụ na United States esoghịzi na ya, ma United States ma Soviet Union ahụghịzi agha ahụ dị ka ihe dị mkpa maka mmekọrịta ha. Nhazi nke ike gbanwere n'ụzọ siri ike maka ọdịmma nke North Vietnam, na North mechara malite agha agha dị ukwuu, Ho Chi Minh Campaign, megide South nke rụpụtara na
inyefe ndị Republic of Vietnam nye ndị agha PAVN na Eprel 30, 1975.