A pro-Russian separatist observes the area through the scope of his rifle at a check point on the outskirts of Donetsk September 6, 2014. An uneasy calm prevailed in eastern Ukraine on Saturday after Ukrainian forces and pro-Russian separatists signed a ceasefire as part of a drive to end a war that has triggered a deep crisis in relations between Russia and the West. (Photo by Maxim Shemetov/Reuters)
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