Gen. Mazloum Kobani, commander of the Syrian Democratic Forces, said watching over the ISIS prisoners locked up in Syria is a "second priority" now that the United States has cleared the way for a Turkish assault likely targeting the mostly Kurdish forces along the border.

"This is a very big problem," Kobani told NBC News. "Nobody has helped in this regard."

The detention centers hold 12,000 suspected terrorists swept up during the U.S.-led campaign against the Islamic State militant group's fighters in the region, according to Kobani and U.S. officials. Of the 12,000, 2,000 are foreign fighters, and Iraqis and Syrians make up the remaining 10,000, Pentagon officials say.


Kurds have in detention 12000 ISIS fighters, now are being attacked by Turkey, what could possibly go wrong