Palestinian children inspect a destroyed mosque following an overnight Israeli military strike, on July 22, 2014, in Rafah the southern Gaza Strip. UN chief Ban Ki-moon and US Secretary of State John Kerry are in Cairo in a bid to broker a truce between Israel and Hamas after two weeks of fighting which has left over 570 Palestinians dead. AFP PHOTO/ SAID KHATIB        (Photo credit should read SAID KHATIB/AFP/Getty Images)