What influenced the u. s. decision to support south vietnam?

domino theory
isolationism
pacification
appeasement

The correct answer is: "Domino theory"

The Domino theory emerged and spread during the 1950s and 1960s. It firmly believed that, when a region fell under communist influence, soon nearby regions would follow the same direction, causing a sort of domino effect. This argument was used by the US goverment to justify its interventions in third countries and proxy wars (such as the Vietnam conflict), during the Cold War era. US leaders often said they did so to prevent that a certain country, and in turn its whole region, would fall under the influence of the URSS.

you didn't give any answers to choose from so i can't with this but, i do know something that the mexican government would be worried about and that is the wall that donald trump is currently trying to get up.

according to the report, the government has imposed restrictions on freedom of speech, freedom of the press, freedom of assembly, and freedom of association. the official media remained tightly controlled by government censorship and obstruction. restrictions on the freedom to assemble remain a problem in vietnam.

explanation: