Answer:The Fear of Communism and the fact that Vietnam was being a puppet like state for the soviets in which America did not want Soviets idea spreading and overcoming democracy.
Explanation:During this time Vietnam was spread apart the north Communism and south was American in which they both fought neither winning or losing important positions or landmarks and eventually we called our troops back realizing the waste of supply’s for the inevitable truth that most of the Vietnamese people accepted communism.