A man walks under a portrait of Syrian President Bashar al-Assad in a street inside the Yarmuk Palestinian refugee camp in the Syrian capital Damascus on April 6, 2015. A group of 14 Palestinian factions said on April 9, that they backed a joint military operation with the Syrian government to expel Islamic State group jihadists from the Yarmuk camp in southern Damascus. AFP PHOTO / YOUSSEF KARWASHAN (Photo credit should read YOUSSEF KARWASHAN/AFP/Getty Images)