Iraqi women and children escaping violence from West Mosul arrive in a UNHCR refugee camp in Hammam al-Alil in the outskirts of the embattled city of on 27 April, 2017. According to the United Nations, a total of more than half a million civilians have been forced to flee their homes since the offensive by Iraqi forces to retake the country's second city from Islamic State fighters was launched more than six months ago. / AFP PHOTO / CHRISTOPHE SIMON