Open this photo in gallery: People flee the eastern parts of Rafah, after the Israeli military began evacuating Palestinian civilians ahead of a threatened assault on the southern Gazan city on May 6.Doaa al Baz/Reuters Israel appeared Monday to be on the verge of launching a long-threatened invasion of Rafah, in the southern Gaza Strip, prompting an outcry from international aid organizations. The Israeli military used text messages, as well as leaflets dropped on the city, to warn residents of the eastern part of Rafah, to leave those areas and to move to what Israel called an “expanded humanitarian zone”...