Fighting ISIS in Syria actually assists the Syrian-Iranian axis. Syria would be their greatest ally. They should start their fight there for numerous reasons. They can hook up with spooks in the lounge bars of some of the nicer hotels in the region. The state security offices of some nations have a penchant for holding meetings with Western intelligence officers in hotel bars. They have no qualms within their society for that. When the bar is empty except for a table with 2 or more Arabs in suits and some Western guys -bingo. The locals know what they are and do not intrude. That could put them on line for some ISR and other support.
I don’t know why you’d want to hook up with spooks these days. IT’s always been hard to tell which side they’re on, and it’s even worse today LOL