Iyi ntambara yabaye hagati ya 1955 na 1975, aho Vietnam ya Ruguru yari ishyigikiye amatwara y’aba communist mu gihe iy’Epfo yayarwanyaga. Bahanganye biciye mu ntambara yamaze imyaka 20 maze birangira igice cy’Amajyaruguru cyari gishyigiwe n’izahoze ari Leta Zunze Ubumwe za Abasoviyeti, u Bushinwa n’abandi bari bashyigikiye ayo matwara kinesheje icy’Epfo cyari gitewe ingabo mu bitugu na Leta Zunze Ubumwe za Amerika, Koreya y’Epfo, Australia,Thailand n’abandi batacanaga uwaka n’abagendera ku matwara y’aba communist.

Iyi ntambara yahitanye abasaga miliyoni eshatu ndetse abasirikare ba Amerika barenga ibihumbi 40 bayisizemo ubuzima.