GAZA CITY, GAZA, JULY 13: A view of UNRWA's school as most refugees fleeing from Israeli air strikes have found shelter in a school of UNRWA in Gaza City, Gaza on July 13, 2014. The total number of Palestinians killed by Israeli airstrikes on the Gaza Strip since Monday has reached 166, according to a Palestinian Health Ministry official. (Photo by Mohammed Talatene/Anadolu Agency/Getty Images)