Southern Sudanese hold pro-independence banners as they march through the streets of the southern capital Juba on Oct. 9, 2010, to mark three months until a referendum for their potential full independence. (Peter Martell/AFP/Getty)
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An aerial view shows Juba, the capital of South Sudan, on Nov. 5, 2010, where U.N. Aid Chief Valerie Amos warned that the referendum on independence for South Sudan could mean increased aid requirements in an already poor region. (Guillaume Lavalee/AFP/Getty)
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Southern Sudanese men hold a pro-independence poster as they wait for the arrival of envoys from the U.N. Security Council at the southern Sudanese capital Juba on Oct. 6, 2010, who are on an official four-day visit to keep pressure on Africa's largest country to hold a vote next year that could lead to independence for the south. (Peter Martell/AFP/Getty)
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Southern Sudanese soldiers wait for the arrival of envoys from the U.N. Security Council at the southern Sudanese capital Juba on Oct. 6, 2010. (Peter Martell/AFP/Getty)
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A Southern Sudanese takes part in a reception rally along the streets of the southern capital Juba on Oct. 1, 2010, to welcome southern President Salva Kiir back to Sudan, and mark the 100-day countdown before the south's historic referendum on full independence on Jan. 9, 2011. (Peter Martell/AFP/Getty)
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A Southern Sudanese dancer takes part in a reception rally along the streets of the southern capital Juba on Oct. 1, 2010. (Peter Martell/AFP/Getty)
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An aerial view shows the southern Sudanese town of Malakal, the capital of Upper Nile state, on Nov. 6, 2009. (Peter Martell/AFP/Getty)
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Southern Sudanese artists stand next to a painted sign urging people to register for the upcoming independence referendum, in the southern capital of Juba on Sept. 30, 2010. (Peter Martell/AFP/Getty)
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Southern Sudanese men point to a billboard commemorating those who died fighting the north in the bitter 1983-2005 civil war, and the former rebel leader and first southern president, the late Dr. John Garang, in the southern capital of Juba on Sept. 30, 2010. (Peter Martell/AFP/Getty)
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