VUGLEGIRSK , UKRAINE - FEBRUARY 18: A pro-Russian rebel holds the helmet of a Ukrainian soldier, which was found in a destroyed armored vehicle on February 18, 2015, near Vuglegirsk, Ukraine. Ukrainian troops have been forced to retreat from Debaltseve following continued fighting as rebels advance on the town in spite of the recent ceasefire agreement. (Photo by Pierre Crom/Getty Images)
