Thats why a long term coalition presence is necessary...If they pulled out,Turkey would invade the Kurds,Iran would invade from the east and Saudi Arabia wound invade to help the Sunnis.
And Syria would Nuke Isreal...that is if they kept trying to smuggle WMD from N Korea and assuming the IAF doesn't blow the crap outta every attempt.
And pakistan would expand as a sorta Walmart "WMD's R Us" supplier for whomever wants to get nasty(this was revealed when Libia came on side & opened their books to the UN)