Turkey’s parliament authorized the government to order military action against Islamic State on Thursday as the insurgents tightened their grip on a Syrian border town, sending thousands more Kurdish refugees into Turkey.

The vote gives the government powers to order incursions intoSyria and Iraq to counter the threat of attack “from all terrorist groups”, although there was little sign that any such action was imminent.

The mandate also allows foreign troops to launch operations from Turkey, a NATO member which hosts a U.S. air base in its southern town of Incirlik, but which has so far resisted a frontline role in the military campaign against the insurgents. […]