United Nations: An international organization established after World War II with the goal of promoting peace and cooperation among member countries.
Iron Curtain: A metaphorical term coined by Winston Churchill that described the division of Europe into communist Eastern Bloc countries (led by the Soviet Union) and democratic Western Bloc countries (led by the United States).
Cold War: A period of political tension between the United States and Soviet Union after World War II until 1991 characterized by ideological conflicts, proxy wars, arms race, and competition for global influence.