U.S.-backed forces in Syria have launched an attack against the last enclave held by the Islamic State Group near the Iraqi border.<br />Kurdish-led Syrian Democratic Forces moved in on the village of Baghouz over the weekend, but have been met with fierce resistance from ISIS militants.<br />Some 20,000 civilians have been evacuated from the area as U.S.-led coalition air strikes and artillery fire pound IS positions.<br />Up to 600 jihadists are thought to be defending their last stronghold. <br />At its peak, ISIS held parts of Iraq and Syria equivalent to the size of Portugal. <br />
