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A masked, black-clad militant, who has been identified by the Washington Post newspaper as a Briton named Mohammed Emwazi, stands next to a man purported to be Steven Sotloff in this still image from a video obtained from SITE Intel Group website
Eddie Ray Routh
A tank belonging to the Shi'ite Badr Brigade militia takes position in front of a gas station in Suleiman Beg, northern Iraq in this September 9, 2014
Ukrainian servicemen ride on a military vehicle near Artemivsk February 19, 2015
Hassan Rouhani
Ukrainian servicemen ride on a tank as they leave an area around Debaltseve, eastern Ukraine near Artemivsk, February 18, 2015
Ukrainian armed forces take their position near Debaltseve, eastern Ukraine February 16, 2015