Syrian children stand in the back of a truck as they flee the contested Bab al-Hadid neighbourhood of the northern Syrian city of Aleppo following an overnight rocket attack on January 2, 2015. Once Syria's economic hub, Aleppo has been ravaged by fighting that began there in mid-2012 and the city is now divided with government forces controlling the western part and rebels controlling the east. AFP PHOTO / ZEIN AL-RIFAI        (Photo credit should read ZEIN AL-RIFAI/AFP/Getty Images)