Air Mobility Command undergoes a major restructuring, creating a single numbered air force-18th Air Force, headquartered at Scott AFB, Ill.-and transforming 15th AF at Travis AFB, Calif., and 21st AF at McGuire AFB, N.J., into expeditionary mobility task forces reporting to 18th AF.
The U.S. began extensive air and artillery strikes against Islamic State group targets in Syria on Dec. 19 in retaliation for the killing of three Americans on Dec. 13 by a gunman affiliated with ISIS, U.S. officials said.

