EDITORS NOTE: Graphic content / Syrian rescue workers carry a young victim on a stretcher following a reported air srike on the rebel-held northwestern city of Idlib on 17 August, 2016. 
More than 290,000 people have been killed and millions forced to flee their homes since Syria's conflict erupted in March 2011. 


 / AFP / Omar haj kadour        (Photo credit should read OMAR HAJ KADOUR/AFP/Getty Images)