Air Force Reserve Chief Master Sgt. Ronald McCulley, 919th Security Forces Squadron, receives congratulations during a ceremony inducting him into the Air Force's highest enlisted rank Feb. 3, 2012 at Duke Field, Fla. McCulley clutches a special Jeep memento which, according to Air Force tradition, he must guard at all times until the next Duke Field chief is similarly inducted. (U.S. Air Force photo/Dan Neely)