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  Yalta Conference
 May World War II ends in Europe.
 Aug. U.S. drops an atomic bomb on Hiroshima, Japan.
 Potsdam Conference - Truman - Stalin and British divide up Europe
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  First East European Communist government set up in Albania.
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  Communists seize power in Poland.
 March Truman Doctrine announced.
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  Berlin Airlift begins (ends May 19, 1949)
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  North Atlantic Treaty Organization (NATO) established.
 Soviet Union explodes its first atomic bomb.
 Communists win Chinese Civil War.
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  U.S. and other U.N. members fight North Korean forces.
 (the Korean War ends July 27, 1953)
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  U.S. sponsored coup overthrows Iranian government.
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  U.S. sponsored coup overthrows Guatemalan government.
 Southeast Asia Treaty Organization (SEATO) formed.
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  Warsaw Pact formed.
 First Summit Meeting between President Dwight Eisenhower and Premier Nikita Khrushchev.
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  Red Army crushes the Hungarian Revolution.
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  U.S. and China establish diplomatic relations.
 Soviet Red Army invades Afghanistan