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| | Union of Soviet Socialist Republics. The Columbia Encyclopedia, Sixth Edition. 2001-05 |
 | | Cooperation between the USSR and the Western powersalready shaky during the warceased soon after the armistice, and relations between the Soviet Union and the United States (which emerged from the war as the two chief powers in the world) became increasingly strained, leading to the international tension of the cold war. |
 | | In the technological race between the Soviet Union and the West (principally the United States), the USSR exploded (1953) a hydrogen bomb; announced (1957) the development of intercontinental ballistic missiles; orbited (1957) the first artificial earth satellite (called Sputnik); and in 1961 sent Yuri Gagarin in the first manned orbital flight. |
 | | The NEP ushered in a period of relative stability and prosperity, and in 1922 the treaty of union formally joined Russia, Ukraine, Belorussia, and Transcaucasia (divided in 1936 into the Georgian, Armenian, and Azerbaijan republics). |
| www.bartleby.com /65/un/UnionSov.html (5286 words) |
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