The document discusses the Cold War between 1947-1991. It contains 17 words or phrases related to key events and figures of the Cold War such as espionage, Gorbachev, the USSR, capitalism, communism, socialism, Gagarin, perestroika, glasnost, Vietnam, Sputnik, Amstrong, the Cuban Revolution, the Platt Amendment, and the Berlin Wall. It also mentions the North Atlantic Treaty Organization (NATO) and Warsaw Pact.