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under the truman doctrine, named after president harry s truman, the united states ofered military aid to countris such as greece and turkey.
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the north anantic treaty organization was formed to responnd to possible attaks by the soviet union.
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the soviet union formed its satellites into an anti-west military alliance knownas worsaw packed.
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They lanched sputnik I, the first space craft to orbit the earth
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This became the eropean economic community. workers from other member countries.
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denmark, great britan, ireland, spain, portugal, and greece also joined the common market.
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the government built a wall beetween east and west berlin.the wall, with soviet solgers garding it, became a sybol of the split beetween eastern and western europe.
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neal armstrong be came the first person too walk on the moon.
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the first landings on mars were made by the us crawleres space craft.
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mikhail gorbachev became the leader of the soviet union.