48th Fighter Wing command chief receives new position Published Sept. 19, 2008 ROYAL AIR FORCE LAKENHEATH, England -- Chief Master Sgt. Jeffrey Williams, 48th Fighter Wing command chief, has been selected to become the U. S. Air Force Warfare Center command chief at Nellis Air Force Base, Nev. The date of his transition has yet to be announced. The U. S. Air Force Warfare Center exists to provide well trained and well equipped combat forces ready to deploy into a combat arena to conduct integrated combat operations. The USAFWC mission is to shape the way our force fights through operational testing, tactics development and advanced training in air, space and cyberspace at the operational and tactical levels.