What was a negative effect of the United States' involvement in the Vietnam War?(1 point) Responses The United States withdrew its support of the policy of containment which further fueled the Cold War. The United States withdrew its support of the policy of containment which further fueled the Cold War. The death toll for American soldiers was high, and the American public were divided in their support of the war. The death toll for American soldiers was high, and the American public were divided in their support of the war. American businesses in Vietnam suffered under Communist control. American businesses in Vietnam suffered under Communist control. America lost it's colonial territory in Vietnam as a result of the conflict.