The list of disagreements is unusually long for the two NATO allies: There's U.S. support for Kurdish fighters in Syria, as well as Turkey’s purchase of a Russian weapons system.
Gen. Frank McKenzie visited four U.S. outposts in Syria. His message Friday was short and direct: U.S. forces remain in Syria to fight the remnants of ISIS.
A spokesman for the U.S.-backed coalition said coalition forces will provide support during the operation “for early warning and situational awareness.”