TOPSHOT - Syrian Hadheefa al-Shahadh, 27, sits with his children in a cave that he dug inside his house to shelter him and his family as part of preparations for any upcoming raids in the rebel-held Idlib province's village of Maar Shurin, on September 11, 2018. - Fearing government forces and their allies military advance to retake Idlib province, the father of three learnt from YouTube videos how to make gas masks from charcoal, wood, paper cups, cotton, nylon plastic bags and tapes. According to him, he could manufacture more masks but the material he needs are not always available. (Photo by OMAR HAJ KADOUR / AFP) (Photo credit should read OMAR HAJ KADOUR/AFP/Getty Images)
