Hi
The answer is : A
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<span>the Union of Soviet Socialist Republics abbreviated to the USSR or a shortened to the Soviet Union, was a Marxist–Leninist state on the Eurasian continent that existed between 1922 and 1991.
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Fully blockade all Southern coasts
Oil
Africa's youngest country has one of the best world oil reserves. Previously, the country was part of the bigger Sudan,mainly controlled by Muslims, who impoverished the south a great deal. the christian majority south waged a war of secession, which ended up in a vote to divide the country.
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