TOPSHOT - A child looks on as she stands in the back of a truck carrying children in a convoy of vehicles led by US-backed Syrian Democratic Forces (SDF) transported fighters believed to be surrendering members of Islamic State (IS) group and their families out of IS's last holdout of Baghouz in Syria's northern Deir Ezzor province, on February 20, 2019. - A convoy of trucks evacuated dozens of people from the Islamic State group's last Syria redoubt, bringing US-backed forces closer to retaking the final patch of their 2014 "caliphate". The implosion of the jihadist proto-state which once spanned swathes of Syria and neighbouring Iraq has left Western nations grappling with how to handle citizens who left to join IS. (Photo by Delil SOULEIMAN / AFP)