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  When the U.S. flew supplies over the berlin wall to eastern berlin which ended the blockade.
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  The North Atlantic Treaty Organization. A chain of alliances that consisted of the U.S, Canada, and several western european countries.
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  The Warsaw Pact was a treaty between most of eastern europe and the USSR
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  The first artificial earth satellite. Sputnik was launched by the USSR
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  A wall that completely encircled western berlin. It was put up overnight.
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  A conflict when both the U.S. and the USSR deployed missiles causing a political and military standoff.
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  When the U.S. successfully put two men on the moon.
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  When due to political unrest eastern germany could visit western germany. A leading role in ending the cold war.