The involvement of the US in Vietnam was in part due to this policy, which was aimed at stopping the spread of communism(1 point) Responses containment containment McCarthyism McCarthyism domino theory domino theory quarantine
As mentioned in the response, the policy aimed at stopping the spread of communism that led to US involvement in Vietnam was the containment policy. This policy was based on the belief that if one country fell to communism, neighboring countries would also fall like a line of dominoes, hence the term "domino theory." This fear of communism spreading further throughout Southeast Asia was a major factor in the US decision to become involved in the Vietnam War.
