Containment: This is a strategy used by the United States during the Cold War to prevent the spread of communism. It's like putting up barriers around your garden to keep weeds from spreading into it.
Iron Curtain: A term popularized by Winston Churchill describing the ideological divide between Western Europe and Eastern Europe controlled by the Soviet Union during the Cold War. Imagine it as an invisible wall separating two neighborhoods with different rules and ways of life.
NATO (North Atlantic Treaty Organization): An intergovernmental military alliance formed in 1949 by North American and European countries as a countermeasure against potential Soviet aggression. Picture this as a group of friends banding together for protection against a common bully.