DAMASCUS, SYRIA - APRIL 7: Buildings are damaged after Assad regime forces rocket attack to Yarmouk refugee camp, on April 7, 2015, in Damascus, Syria. (Photo by Rami el Sayed/Anadolu Agency/Getty Images)
DAMASCUS, SYRIA - APRIL 7: Buildings are damaged after Assad regime forces rocket attack to Yarmouk refugee camp, on April 7, 2015, in Damascus, Syria. (Photo by Rami el Sayed/Anadolu Agency/Getty Images)