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In 1970 te soviet Union had been

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was a barrier that divided west berlin from east germany

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It started in 1950 when some soldiers from the north korean people army poured across the 38 parallel, the boundary between the soviet backed democratic peoples rpublic of korea to the north and the pro-western republic of korea to the south

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It was in 1962 when confrontation between the United States and the Soviet Union during the Cold War and was the moment when the two superpowers came closest to nuclear conflict.

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The us gobernment provided 16 european countries with 17 billion dollars of aid over the next four years (1948-52)

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What cause it? cold war,the aims(stalin wanted to destroy Germany), american aid. It was a international crisis that arose from an attempt by the soviet union , in 1948–49, to force the Western Allied powers to leave their post-World War II jurisdictions in west berlin

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With the Truman Doctrine, President Harry S. Truman established that the United States would provide political, military and economic assistance to all democratic nations under threat from external or internal authoritarian forces

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Was A the political, military, and ideological barrier erected by the soviet union  to seal off itself and its dependent eastern and central European allies from open contact with the West and other noncommunist areas.