Gen. Donald Hoffman, commander of Air Force Materiel Command, declares full operational capability for the Air Force Nuclear Weapons Center at Kirtland AFB, N.M. AFNWC was March 31, 2006.
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.

