(A) describe U.S. responses to Soviet aggression after World War II, including the Truman Doctrine, the Marshall Plan, the Berlin Airlift, the North Atlantic Treaty Organization, and John F. Kennedy's role in the Cuban Missile Crisis;

(B) describe how Cold War tensions were intensified by the House Un-American Activities Committee (HUAC), McCarthyism, the arms race, and the space race;

(C) explain reasons and outcomes for U.S. involvement in the Korean War and its relationship to the containment policy;

(D) explain reasons and outcomes for U.S. involvement in foreign countries and their relationship to the Domino Theory, including the Vietnam War;