Some direct...assistance. Air power. Drones. Small groups of US personnel directing fire, coordinating, facilitating.....Pete?
And that would be the correct way to confront ISIS. As was called by neocons long before your thread start on Mosul was even a fetus.
You're late to the table, Realist, but better late than never. Why not sit in the back row, the cap in the chair is yours and yes, it says dunce on it. Well deserved.