Master Sgt. Katrina Medley, 96th Security Forces Squadron, looks out from the doorway of her facility during a chemical, biological, radiological, nuclear and explosive exercise at Eglin Air Force Base, Fla., Feb. 1. The exercise evaluated the Airmen’s ability to meet wartime and contingency taskings of employing and sustaining the force and the ability to survive and operate. (U.S. Air Force photo/Samuel King Jr.)