Containment: Containment refers to the U.S. strategy during the Cold War period to prevent the spread of communism by using various methods such as military intervention, alliances, economic aid, and propaganda.
Iron Curtain: The Iron Curtain was a metaphorical term used to describe the physical and ideological division between Western Europe (capitalist democracies) and Eastern Europe (communist countries) during the Cold War.
Arms Race: The arms race refers to the competition between the United States and Soviet Union to build up their military capabilities, particularly nuclear weapons, during the Cold War period.