1st Lt. Sam Waterman, of the 90th Security Forces Squadron, walks beside an UA/HMMWV as it patrols the perimeter of the base during the three-day Brave Defender field training exercise May 19 at Eglin Air Force Base, Fla. The exercise is the culmination of Air Force Materiel Command’s six-week security forces deployment training, administered by the 96th Ground Combat Training Squadron. (U.S. Air Force photo/Samuel King Jr.)