Containment: A strategy adopted by the United States during the Cold War to prevent the spread of communism by providing military aid and support to countries threatened by communist expansion.
McCarthyism: A period of intense anti-communist sentiment in the United States characterized by investigations, accusations, and blacklisting of individuals suspected of being communists or sympathizers.
Iron Curtain: A metaphorical term used during the Cold War referring to the division between Western Europe (capitalist) and Eastern Europe (communist) created through Soviet influence.