OSLO, Norway (AFP) — Islamic State fighters are using civilians as human shields in the group’s de facto Syria capital Raqa, a Syrian activist said Tuesday, complicating things for a Kurdish-Arab alliance which has launched an offensive in the area. The Syrian Democratic Forces, a seven-month-old alliance between Kurdish and Arab forces, launched an offensive on Tuesday in areas north of Raqa. The operation is potentially one of the most serious ground efforts against IS […]