In the Syrian city of Raqqah on the banks of the Euphrates River, Islamic State militants are busy building a capital fit for their followers. Human rights observers say they have stoned women to death for adultery, while residents report that religious textbooks have been imported for schools and the market flooded with black cloaks for girls as young as 6 years old. Even as it wages war on multiple fronts, the group has had time to focus on the details, recruit thousands into its forces and celebrate victories by parading the heads of its enemies. It’s a reflection of how entrenched the group has become in Syria and how difficult it will be to uproot it from the country where it was able to assemble and train enough forces to push into Iraq in June. U.S. airstrikes alone won’t do it and the international community doesn’t have any […]