Ukrainian troops ride on an armored vehicle outside Artemivsk, Ukraine, while withdrawing from Debaltseve, Wednesday, Feb. 18, 2015. After weeks of relentless fighting, the embattled Ukrainian rail hub of Debaltseve fell Wednesday to Russia-backed separatists, who hoisted a flag in triumph over the town. The Ukrainian president confirmed that he had ordered troops to pull out and the rebels reported taking hundreds of soldiers captive.(AP Photo/Vadim Ghirda)