USSF embedded into ISF and carpet bomb all ISIL position and oil refineries. Target list has been made, excute the F-18, F-15, B52, B-1B and B-2 Bombers on them! USSF being the force multipliers we are, with CTT/JTACs and Iraqi Ground Commnaders calling in for "assists" in air support and approving on drops. SO if the ISIL are around Iraqi People, Local ISIL Supporters, it was the Iraqi Ground commander that approved the Drops, no USSF or U.S. Forces "Ground Forces."
Syria excute the F-18, F-15, B-1B and B-2 Bombers on all Target packages. If we need to take out a Refinery or Oil Field, oh Well.
I think ground forces is not needed, especially Conventional Forces. Maybe in support of USSF and Key "SOF" elements at key Airfields like Bagadad or Balad airfield.
But Billy L, Our POTUS said that we have reduced and/or removed Syria Chemical Weapons stockpiles last year or earlier this year!!