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The national security act reorganized the foreign policy and military establishment.
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This gave Europe money to help recover their economy. It did help a lot, but the USSR seen it as the US interfering with international affairs.
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The Eisenhower doctrine established the Middle East as the Cold War battlefield.
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Sputnik marked the start of the space age and the U.s. - U.S.S.R space race.
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The Bay of Pigs made President Kennedy and his administration embarrassed. Also if this would have never happened then the Cuban Missile Crisis wouldn't have happened either. Which means the US and the USSR wouldn't have almost been in a nuclear war.
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The Berlin Wall was a symbol of communism