The quiet of Al Hol camp in the afternoon belies the trouble that lurks beneath the surface. In an annex of this sprawling facility reserved for some 10,000 foreign wives and children of Isis fighters from around the world, a mutiny is brewing.

President Recep Tayyip Erdogan said Turkey might send troops to Libya to counter Russian-backed militia forces. The battle for control of Libya threatened to escalate further this week as Turkey said it might intervene to stop the Russian-backed forces now closing in on Tripoli, the capital.

Turkey’s foreign minister suggested Wednesday that the United States could be barred from using two strategic air bases in retaliation to possible U.S. sanctions against his country, the state-run Anadolu Agency reported.