Direct invasion by a neighboring state is when an air force would be most needed. Clearly Iraq's military will not be able to protect Iraq from direct invasion by wolves like Iran and Syria for quite some time.
If the Iraqi military proves itself up to the task of maintaining internal order, support from the U.S. military, including our Air Force, will still be needed for quite some time.
(I wonder if Ms. Pelosi understands things this "complicated"?)
"..support from the U.S. military, including our Air Force, will still be needed for quite some time."
No, forever.