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In 1945, the U.S. bombs Hiroshima and Nagasaki. -
It was President Truman's containment policy. -
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The second Chinese Civil War took place between 1946 and 1949. -
An economic organization led by the Soviet Union is created. -
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The Soviet Union tested its first atomic bomb -
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15 million people migrate from east to west -
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The Warsaw Pact was founded in 1955 and disappeared in 1991. -
The Vietnam War was one of the most important conflicts of the post-war period.
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It was a movement against the government of the People's Republic of Hungary. -
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Blockade to Cuba -
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