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  Potsdam Conference The United States drops an atomic bomb on Hiroshima, Japan. Potsdam Conference - Truman - Stalin and British divide up Europe
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  Communist Poland The communists seize power in Poland
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  Truman Doctrine Truman Doctrine announced.
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  Berlin Airlit Berlin Airlift begins (ends May 19, 1949)
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  NATONorth Atlantic Treaty Organization (NATO) established.
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  Korean War U.S. and other U.N. members fight North Korean forces. (the Korean War ends July 27, 1953)
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  Sputnik Soviets launch first man‑made satellite.
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  Bay of Pigs Bay of Pigs invasion of Cuba.
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  Cuban Missile Crisis.
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  President Richard Nixon visits China.
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  South Vietnam falls to Communist forces.
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  Mikhail Gorbachev becomes leader of the Soviet Union, the following year he declares glasnost and perestroika.
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  Berlin Wall is demolished.
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  George Bush and Mikhail Gorbachev agree to the reunification of Germany in 1994
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  The Soviet Union is abolished. Boris Yeltsin becomes President of Russia.