Answer: The fight against fascism during World War II brought to the forefront the contradictions between America's ideals of democracy and equality and its treatment of racial minorities.
Explanation: Throughout the war, the NAACP and other civil rights organizations worked to end discrimination in the armed forces.
Two of the main reasons for Truman's policy of containment during the Cold War were that the USSR was trying to rapidly expand, and that eliminating communism where it already existed was extremely unlikely. It was considered a very effective policy originally but then was viewed with skepticism when Vietnam hit.