US troops inside Raqa, IS Syria stronghold: official

United States military advisers are operating inside the city of Raqa, the Islamic State group's last major bastion in Syria, a US official said Wednesday.The troops, many of them special operations forces, are working in an "advise, assist and accompany" role to support local fighters from the Syrian Democratic Forces as they battle IS, said Colonel Ryan Dillon, a military spokesman.The troops are not in a direct combat role but are calling in air strikes and are working closer to the fight tha