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Winston Churchill gives his "Iron Curtain" speech, describing the dividing effect of the Soviet actions
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the Truman Doctrine is announced, designed to oppose the spread of communism through economic and military aid
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the United States launches the Marshall Plan, helping Western Europe make a quicker recovery through economic aid
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the Soviets block off all possible routes to West Berlin, depriving residents of necessary supplies in hopes that the West would be forced to leave Berlin
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Western leaders organize the Berlin airlift to provide West Berlin with needed supplies by air
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the United States, Canada, and most Western European countries form NATO, or the North Atlantic Treaty Organization, as a military alliance
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the United States is successful in the creation of the first hydrogen bomb, but less than a year later the Soviet Union tests their own
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the Soviet Union and many Eastern European countries create their own alliance, the Warsaw Pact
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NASA is formed in response to the Soviet Union's launch of Sputnik, the first artificial satellite
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the U.S. secretly trained about 1,500 Cubans who had fled Castro's regime, who came ashore but were quickly defeated at Cuba's Bay of Pigs
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confrontation between the United States and Soviet Union began over Soviet nuclear weapons located in Cuba. Soviets removed the missiles when the U.S. agreed to remove their own missiles from Turkey
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both sides were convinced it was important to make some progress in arms control, resulting in the signing of the Test Ban Treaty, which outlawed testing in the atmosphere, outer space, and underwater
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the United States successfully makes the first manned moon landing with Apollo 11, manned by Neil Armstrong, Buzz Aldrin, and Michael Collins
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the Nuclear Non-Proliferation Treaty was created to support disarmament, nonproliferation, and peaceful uses of nuclear energy
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the Intermediate-Range Nuclear Forces, or INF, treaty called for elimination of certain types of missiles. this treaty helped in the repair of the tense relationship of the United States and Soviet Union
