Frederik Pleitgen is a senior international correspondent for CNN. He has reported extensively on Syria's civil war.
(CNN)Ali was clearing debris from a room that used to be part of a hospital. The ceasefire in Aleppo was still tentatively holding, and the 12-year-old boy was taking advantage of a lull in the fighting to carve out a new place to live. Shihan, a government-held area, used to be right on the front line; now, after years of fighting, it lies in ruins. Displaced people were moving into the bombed-out ruins.