Ukrainian children sit in a bus before fleeing Debaltseve, in the Donetsk region, on February 3, 2015. <a href="index.php?page=&url=http%3A%2F%2Fcnn.com%2F2015%2F02%2F18%2Feurope%2Fukraine-conflict%2F">Ukraine's military said Wednesday </a>that 80% of Ukrainian armed forces have now pulled out of a strategic railroad hub that's been the focus of bitter fighting with pro-Russian separatists.
Ukrainian children sit in a bus before fleeing Debaltseve, in the Donetsk region, on February 3, 2015. Ukraine's military said Wednesday that 80% of Ukrainian armed forces have now pulled out of a strategic railroad hub that's been the focus of bitter fighting with pro-Russian separatists.
MANU BRABO/AFP/Getty Images
A Ukrainian woman cries in an administration building before taking a bus to flee her town in Debaltseve. <a href="index.php?page=&url=http%3A%2F%2Fcnn.com%2F2015%2F02%2F18%2Feurope%2Fukraine-conflict%2F">Continued conflict there has undermined a truce</a> that apparently went into effect Sunday, raising concerns it is all but dead.
A Ukrainian woman cries in an administration building before taking a bus to flee her town in Debaltseve. Continued conflict there has undermined a truce that apparently went into effect Sunday, raising concerns it is all but dead.
MANU BRABO/AFP/Getty Images
An elderly Ukrainian man is helped by a Ukrainian Army soldier and a citizen during a evacuation of civilians in Debaltseve.
An elderly Ukrainian man is helped by a Ukrainian Army soldier and a citizen during a evacuation of civilians in Debaltseve.
MANU BRABO/AFP/Getty Images
An elderly Ukrainian man stands inside a bus before being evacuated from the region.
An elderly Ukrainian man stands inside a bus before being evacuated from the region.
MANU BRABO/AFP/Getty Images
Ukrainian children look through a window of a bus near Artemivsk, eastern Ukraine, on February 5, as people are evacuated.
Ukrainian children look through a window of a bus near Artemivsk, eastern Ukraine, on February 5, as people are evacuated.
AP Photo/Evgeniy Maloletka
Pro-Russian rebels stationed in the eastern Ukrainian city of Gorlivka, Donetsk region, launch missiles from a Grad launch vehicle toward a position of the Ukrainian forces in Debaltseve on February 13. <a href="index.php?page=&url=http%3A%2F%2Fcnn.com%2F2015%2F02%2F13%2Feurope%2Fukraine-conflict%2F">Ukraine President Petro Poroshenko said </a>the ceasefire that was due to go into effect is in "big danger."
Pro-Russian rebels stationed in the eastern Ukrainian city of Gorlivka, Donetsk region, launch missiles from a Grad launch vehicle toward a position of the Ukrainian forces in Debaltseve on February 13. Ukraine President Petro Poroshenko said the ceasefire that was due to go into effect is in "big danger."
ANDREY BORODULIN/AFP/Getty Images
Ukrainian servicemen play football on a road in Svitlodarsk approaching Debaltseve on February 15. <a href="index.php?page=&url=http%3A%2F%2Fcnn.com%2F2015%2F02%2F15%2Feurope%2Fukraine-conflict%2F">The ceasefire went into effect after midnight,</a> followed by brief accusations of violence.
Ukrainian servicemen play football on a road in Svitlodarsk approaching Debaltseve on February 15. The ceasefire went into effect after midnight, followed by brief accusations of violence.
VOLODYMYR SHUVAYEV/AFP/Getty Images
A Ukrainian soldier rests on his vehicle near the road between the towns of Debaltseve and Artemivsk on February 16.
A Ukrainian soldier rests on his vehicle near the road between the towns of Debaltseve and Artemivsk on February 16.
AP Photo/Petr David Josek
A Ukrainian armored vehicle passes on a road stretching away from the town of Artemivsk towards Debaltseve on February 17.
A Ukrainian armored vehicle passes on a road stretching away from the town of Artemivsk towards Debaltseve on February 17.
AP Photo/Petr David Josek
A pro-Russian rebel carries ammunition to be loaded onto a truck near Debaltseve on February 17.
A pro-Russian rebel carries ammunition to be loaded onto a truck near Debaltseve on February 17.
VASILY MAXIMOV/AFP/Getty Images
Pro-Russian rebels load the ammunition onto a truck. <a href="index.php?page=&url=http%3A%2F%2Fcnn.com%2F2015%2F02%2F18%2Feurope%2Fukraine-conflict%2F">The Organization for Security and Cooperation in Europe, </a>which is tasked with monitoring the ceasefire and a supposed withdrawal of heavy weapons, has not been able to gain access to Debaltseve because of the continued conflict.
Pro-Russian rebels load the ammunition onto a truck. The Organization for Security and Cooperation in Europe, which is tasked with monitoring the ceasefire and a supposed withdrawal of heavy weapons, has not been able to gain access to Debaltseve because of the continued conflict.
VASILY MAXIMOV/AFP/Getty Images
Pro-Russian rebels warm themselves by a fire during a break between fighting.
Pro-Russian rebels warm themselves by a fire during a break between fighting.
VASILY MAXIMOV/AFP/Getty Images
Pro-Russian rebels leave for a combat mission near Debaltseve.
Pro-Russian rebels leave for a combat mission near Debaltseve.
VASILY MAXIMOV/AFP/Getty Images
Ukrainian servicemen ride on top of an armored personnel carrier on the way from Artemivsk to Debaltseve.
Ukrainian servicemen ride on top of an armored personnel carrier on the way from Artemivsk to Debaltseve.
ANATOLII STEPANOV/AFP/Getty Images
A gas pipe burns after being struck by shelling in Myronivskyi.
A gas pipe burns after being struck by shelling in Myronivskyi.
Brendan Hoffman/Getty Images