Key terms By: Matthew Wilson Cold War • -an era of high tension and bitter rivalry between the U.S. and the Soviet Union Iron Curtain • - term coined by Winston Churchill in 1946, imaginary line dividing communist countries Containment • Policy that the U.S. adopted in 1946 to stop the spread of communism Berlin Airlift • Program in which the U.S. and Britain shipped supplies by air to West Berlin Baby Boom • A dramatic rise in birthrate after World War two Joseph McCarthy • U.S. senator from Wisconsin who gained national fame McCarthyism • The name critics gave to J.C.’s tactic of spreading fear and making baseless charges Nikita Khrushchev • Leader of soviet union during building of Berlin Wall Warsaw Pact • A military alliance established in 1955 of the soviet union dominated countries Eisenhower Doctrine • Declared the right of the U.S. to help on request any nation of the middle east.