A Kurdish People’s Protection Units (YPG) flag flies, on the same spot where an Islamic State flag flew the day before, in the northern Syrian town of Tel Abyad, as seen from the Turkish border town of Akcakale, in Sanliurfa province, Turkey, June 16, 2015. Syrian Kurdish-led forces said they had captured a town at the Turkish border from Islamic State on Monday, driving it away from the frontier in an advance backed by U.S.-led air strikes that has thrust deep into the jihadists’ Syria stronghold. The capture of Tel Abyad by the Kurdish YPG and smaller Syrian rebel groups means the Syrian Kurds effectively control some 400 km (250 miles) of the Syrian-Turkish border that has been a conduit for foreign fighters joining Islamic State.