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Open Image ModalUkrainian fighters walk in the direction of a burning medical clinic that was hit by an artillery strike on February 14, 2015 in Artemivsk, Ukraine. (credit:Brendan Hoffman via Getty Images)
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Open Image ModalA building lies in ruins from being hit by a shell on February 17, 2015 in Myronivskyi, Ukraine. A ceasefire agreed to by Ukraine and pro-Russian rebel forces has failed to prevent fighting in the nearby town of Debaltseve, where thousands of Ukrainian troops remain and whom rebels claim to have surrounded. (credit:Brendan Hoffman via Getty Images)
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Open Image ModalA Pro-Russian rebel walks past a car destroyed by a rocket during recent shelling in Donetsk, Ukraine, Monday, Feb. 9, 2015. (credit:ASSOCIATED PRESS)
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Open Image ModalA person walks near the remains of a man lying near a bus stop that was damaged in shelling in Donetsk, eastern Ukraine, Tuesday, Jan. 20, 2015. (credit:ASSOCIATED PRESS)
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Open Image ModalA Ukrainian man walks through the debris produced after the Ukrainian Army hit a building in Voroshilovsky area, center of Donetsk, Ukraine. Sunday, Jan. 18, 2015. (credit:ASSOCIATED PRESS)
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Open Image ModalA body of a civilian killed in shelling is covered by a blanket in Donetsk, eastern Ukraine, Friday, Jan. 30, 2015. (credit:ASSOCIATED PRESS)
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Open Image ModalPassengers killed when a trolley bus was damaged by a mortar shell are seen inside a bus in Donetsk, eastern Ukraine, Thursday, Jan. 22, 2015. (credit:ASSOCIATED PRESS)
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Open Image ModalIn this photo taken on Wednesday, Jan. 21, 2015, the destroyed airport in Donetsk, eastern Ukraine is pictured. (credit:ASSOCIATED PRESS)
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Open Image ModalVladimir Bovrichev, 30, cries next to the body of his son Artiam, 4, killed in an artillery strike, during his funeral in Kuivisevsky district on the outskirts of Donetsk, eastern Ukraine, Tuesday, Jan. 20, 2015. (credit:ASSOCIATED PRESS)
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Open Image ModalThe remains of a man lie near a bus stop that was damaged in shelling in Donetsk, eastern Ukraine, Tuesday, Jan. 20, 2015. (credit:ASSOCIATED PRESS)
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Open Image ModalA building hit by the Ukrainian Army Artillery is seen in Voroshilovsky area, center of Donetsk, Ukraine. Sunday, Jan. 18, 2015. (credit:ASSOCIATED PRESS)
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Open Image ModalIn this Thursday, Jan. 15, 2015 photo, smoke rises over the new terminal of Donetsk airport in Donetsk, Eastern Ukraine. (credit:ASSOCIATED PRESS)
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Open Image ModalA car drives by a private house destroyed in a recent battles between the Ukrainian army and pro-Russian separatists in Semenivka, Donetsk region, eastern Ukraine, Monday, Dec. 29, 2014. (credit:ASSOCIATED PRESS)
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Open Image ModalA man fills bottles with water on the northern outskirt of Donestk on February 17, 2015 in Donetsk, Ukraine. (credit:Pierre Crom via Getty Images)
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Open Image ModalA gas pipe burns after being struck by shelling on February 17, 2015 in Myronivskyi, Ukraine. (credit:Brendan Hoffman via Getty Images)
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Open Image ModalUkrainian forces pass through the center of town on February 17, 2015 in Myronivskyi, Ukraine. (credit:Brendan Hoffman via Getty Images)
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Open Image ModalGraves in the cemetery of Mospyne during the funeral of four rebel fighters killed on the frontline on February 16, 2015 in Mospyne, Ukraine. (credit:Pierre Crom via Getty Images)
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Open Image ModalThe graves of fighters without names marked with numbers in the cemetery of Mospyne on February 16, 2015 in Mospyne, Ukraine. (credit:Pierre Crom via Getty Images)
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Open Image ModalA Ukrainian army tank is parked at a base near the village of Peski, Donetsk region, on February 16, 2015. (credit:OLEKSANDR RATUSHNIAK via Getty Images)
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Open Image ModalA resident walks past a conflict damaged building in the eastern Ukrainian city of Donetsk on February 15, 2015. (credit:ANDREY BORODULIN via Getty Images)
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Open Image ModalA member of the medical staff salvages items from amongst the rubble of a destroyed clinic where she had worked in the village of Opytne on February 15, 2015 near Artemivsk in the Donetsk region controlled by by Ukrainian forces, a day after the clinic was destroyed during shelling by pro-Russian rebels. (credit:PETRO ZADOROZHNYY via Getty Images)
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Open Image ModalA building lies damaged on the morning of the ceasefire on February 15, 2015 in Donetsk, Ukraine. (credit:Pierre Crom via Getty Images)
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Open Image ModalDONETSK, UKRAINE - FEBRUARY 15: A building lies damaged on the morning of the ceasefire on February 15, 2015 in Donetsk, Ukraine. The Nothern suburbs of Donetsk have been the hardest hit areas during the ongoing fights between pro-Russian rebels and Ukrainian forces. According to its inhabitants, fighting began in the early morning of the ceasefire at 08:30 am, although reports suggest that most fighting has subsided since the ceasefire came into effect. (Photo by Pierre Crom/Getty Images) (credit:Pierre Crom via Getty Images)
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Open Image ModalA man inspects his destroyed house in a northern suburb on February 15, 2015 in Donetsk, Ukraine. (credit:Pierre Crom via Getty Images)
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Open Image ModalA firefighter battles a blaze at a medical clinic which was hit by artillery on February 14, 2015 in Artemivsk, Ukraine. (credit:Brendan Hoffman via Getty Images)
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Open Image ModalThe road between Artemivsk and the embattled town of Debaltseve on February 14, 2015 in Artemivsk, Ukraine. (credit:Brendan Hoffman via Getty Images)
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Open Image ModalThe graves of Cossacks who have died over the last few months in a cemetery on February 14 2015 in Donetsk, Ukraine. (credit:Pierre Crom via Getty Images)
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Open Image ModalBlood from a Cossack DPR fighter who was killed on the roadblock is seen on rubble in the streets, as fighting continues in the area on February 14, 2015 in Donetsk, Ukraine. (credit:Pierre Crom via Getty Images)