Troops fighting ISIS appeared to on the verge of another victory over the self-proclaimed Islamic State Wednesday, as they moved into a city that has served as the main thoroughfare for ISIS foreign fighters and weapons. But the potential seizure of the Syrian city of Manbij by U.S.-backed forces is only likely to set off a new battle for control—this time pitting Arabs against Kurds.

The battle Wednesday reflected a growing problem for the U.S. and its push to train local fighters, even as those forces take territory from ISIS. Who exactly will govern those towns now? Will it be the Kurds who have led the fight against ISIS? Or will it be what some in the Pentagon have privately called the “token Arabs” trained by the U.S. to accompany them?

Two defense officials told The Daily Beast Wednesday they don’t know. They believe the Arabs would be in charge. But even these officials admit that asking the 5,000-or-so newly-trained Arab fighters to control three or more formerly ISIS-controlled areas—and at the same time move into the ISIS capital of Raqqa—would be difficult.

Read More- The Daily Beast

Image courtesy of AP