The purpose of the exercise was to stop the ISIL from invasion of the Kurds.
That is, the intent was to in effect establish a boundary between the new states of ISIL and Kurdistan. The ISIL have bigger fish to fry with their new heavy weapons. That fish fry is in Syria. Rather than lose the weapons beating on the walls of Kurdistan, a better use is capturing Aleppo.
It is time for all to recognize that which was is no more. There is no longer Syria or Iraq as there was in say 2011 or 2012.
The ISIL boundaries are not yet finalized but with the exception of that including Aleppo and the Med, the outlines are pretty clear.
The ISIS boundaries will be finalized only when every one of the m’effers is buried six feet under. Or what ever is equivalent after a bomb attack.