Nothing that a couple hundred thousand US troops on the ground can't fix.
There are sufficient forces in Syria with the help of the SDF to handle elimination of ISIS.
Problem is Turkey. Do you really think they will fire on US soldiers? Turks won’t, Jihadi’s working for them and ISIS will.
Will we smoke em at that point? Yep.
And it is NOT “just” in Syria:
Turkey hands out ‘warnings’ to US, Iraq, Kurds, Cyprus, and Greece
http://www.kurdistan24.net/en/news/e0a40b5b-f5ff-4de4-a678-aff2204dd497
I don’t think Erdogan the Islamist thought much of his treatment in EU meetings. They made no concessions for him, but posed for photo op with him that was misleading to the world.