Dhameystir weedhan soo socota: Madaxweyne John F. Kennedy, tirada ciidamada Mareykanka ee Vietnam waxay hoos imaadeen barnaamijka Kooxda La-talinta Gargaarka Militariga laga bilaabo wax kayar kun sanadkii 1959 ilaa 16,000 sanadkii 1963. Madaxweynaha Koonfurta Vietnam, Ngo Dinh Diem, ayaa si adag u cadaadiyay
Dagaalkii budhcad badeedka ee 1963-kii wuxuu maraykanka ku riixay in ay taageeraan afgambi milatari oo lagu dilay Diem. Dagaalku wuxuu sii kordhay 1964 kadib dhacdadii muranka badnayd ee Gacanka Tonkin, taas oo lagu eedeeyay in burburiyaha Mareykanka uu isku dhacay maraakiibta weerarka degdegga ah ee Waqooyiga Vietnam. Go'aanka Gacanka Tonkin wuxuu siiyay madaxweyne Lyndon B. Johnson awood ballaaran si loo kordhiyo joogitaanka militariga Mareykanka, iyadoo la geynayo unugyo dagaal oo dhulka ah markii ugu horeysay iyo kordhinta tirada ciidamada ilaa 184,000. Hogaamiyihii Soviet Leonid Brezhnev ayaa ka jawaabey isagoo ka laabtay siyaasadii Khrushchev ee kala goynta iyo kordhinta gargaarka Waqooyiga Vietnam, isagoo rajeynaya inuu Waqooyiga ka dhaadhiciyo mowqifkiisa taageersan Shiinaha. Si kastaba ha noqotee, USSR waxay ka niyad jabisay sii kordhinta dagaalka, si kastaba ha noqotee, waxay bixisay kaalmo milatari oo ku filan oo ay ku xirto ciidamada Mareykanka. Laga soo bilaabo waqtigan, Ciidanka Shacabka ee Vietnam (PAVN), oo sidoo kale loo yaqaan Ciidanka Waqooyiga Vietnam (NVA) waxay ku hawlan yihiin dagaal caadi ah oo ay la galaan ciidamada Mareykanka iyo Koonfurta Vietnam.