syrian boy sits in the rubble of house which was destroyed during a military operation by the syrian army in april 2012, in the town of taftanaz, 15 kilometers east of idlib, syria. (ap photo/khalil hamra, file)

syrian abu eissa ghazzal, 75, walks next to a house that was burned during a military operation by the syrian army in april 2012, in the town of taftanaz, 15 kilometers east of idlib, syria. at dawn on april 3, syrian forces shelled the town in the first volley of what residents say was a massive assault after a string of large protests calling for the end of the autocratic rule of president bashar assad. (ap photo/khalil hamra)

syrian man walks between piles of dirt left by the syrian army on the sides of a street in the town of taftanaz, 15 kilometers east of idlib, syria. at dawn on april 3, syrian forces shelled the town in the first volley of what residents say was a massive assault after a string of large protests calling for the end of the autocratic rule of president bashar assad. (ap photo/khalil hamra, file)