Id be shocked if the cia isnt getting in on this. But i agree with yiu and some other commenters: anything overt would be unwise at this time. Also, weve seen again and again that arming 'the enemy of my enemy hoping they become friends' doesnt work (taliban). Any us involvement would have to be surgical and plausibly deniable (like us drones taking out specific targets - this does mean there will be collaterAL damage and that has to be considered too)