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Associated Press
Kurdistan Iraqi regional government President Massoud Barzani arrives to support Kurdish forces as they head to battle Islamic State militants, on the summit of Mount Sinjar, in the town of Sinjar, Iraq, Sunday, Dec. 21, 2014. Iraqi Kurdish fighters pushed their way Sunday into the town of Sinjar, backed by U.S.-led coalition airstrikes against Islamic State militants who captured the town last summer. Loud explosions and intense gunbattles were heard from inside the town. Barzani vowed to crush the Islamic State group as fighting rages in Sinjar. (AP Photo/Zana Ahmed)

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