Pro Russian Rebels Fire Rockets On Ukrainian Positions

DEBALTSEVE, UKRAINE - FEBRUARY 13: Pro Russian rebels fire grad rockets on Ukrainian positions under orders of Olga Sergeevna, also known as Corsa, on February 13, 2015 in Debaltseve, Ukraine. Corsa is the only woman commander of a artillery unit fighting for the Donetsk People's Republic . The leaders of Russia, Ukraine, Germany and France have announced that they have reached a ceasefire deal, that is due to begin on February 15. (Photo by Pierre Crom/Getty Images)