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The United States drops atomic bomb on Hiroshima.
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Russia declares war on Japan.
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The United States drops atomic bomb on Nagasaki.
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The Japanese surrender, and WW2 ends.
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Stalin's hostile speech.
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"Sinews of Peace" iron cutain speech by Winston Churchill.
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Truman demands Russia leave Iran.
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first public demonstration of America's atomic arsenal.
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Truman declares active role in Greek Civil War.
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Tensions high.
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created to catch Cold War spies
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organized to protect Europe from communism.
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lasted 11 months
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Russia tested its first atomic bomb.
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Truman approves the H bomb
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The Korean War begins.
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A bombs are developed by Britain
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Vietnam splits at the 17th parallel
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