How did the domino theory influence the united states' role in the vietnam war?
a)
vietnamization became the new u. s. foreign policy.
b)
the united states adopted a position of neutrality.
c)
it forced the united states to support the vietcong.
d)
it convinced the government to become involved in the war.

D)It convinced the government to become involved in the war.

Explanation:

The "domino theory" held that if one nation fell to communism then the others around it most likely would. This philosophy's influence is that it convinced the government to become involved in the war which dragged the United States into the civil conflict in Vietnam

D)It convinced the government to become involved in the war.

Explanation:

the indians crossed artificial boundaries, setting the stage for conflict