Palestinians bury the bodies of three children from the Al-Rifi family, whom medics said were killed in Israeli air strikes, at a cemetery in Gaza City August 21, 2014. An Israeli air strike killed three senior Hamas military commanders in the Gaza Strip on Thursday, the Islamist group said, the clearest sign yet Israel is focusing its assault on those leading attacks from the Palestinian enclave. The Israeli military had no immediate comment on what would constitute the killing of the most senior Hamas men since it launched its offensive on Gaza six week ago with the declared aim of curbing rocket fire into its territory. Photo by Naaman Omar