IS in Syria boxed in to shrinking pocket Fighters from the Kurdish-led Syrian Democratic Forces (SDF) head to the frontline with the Islamic State group jihadists in the countryside of Syria's eastern Deir Ezzor province, near the border with Iraq. Backed by US-led coalition air strikes, the SDF has confined the extremists to a final pocket spanning just four square kilometers on the Euphrates River in Deir Ezzor province. IMAGES AND SOUNDBITE