Palestinians, hoping to cross into Egypt, climb a wall as policemen loyal to Hamas stand guard at the Rafah crossing between Egypt and the southern Gaza Strip January 20, 2015. Egyptian authorities opened Rafah crossing, Gaza's main window to the outside world, on Tuesday for three days, officials said. Egypt shut the crossing over violence with Islamist militants in Egypt's adjacent Sinai region last October. Since then, it opened the crossing partially and on a few occasions to allow thousands of Palestinians to travel in and out of Gaza Strip. Photo by Abed Rahim Khatib