U.S. Air Force Master Sgt. Torrie Stack, 52nd Mission Support Group Logistics and Resources superintendent, performs his normal duties wearing mission-oriented protective posture gear at Spangdahlem Air Base, Germany, Sept. 12, 2018, during a base-wide readiness exercise. The event stressed the importance of being prepared for any possible chemical, biological, readiological, or nuclear threat. (U.S. Air Force photo by Airman 1st Class Valerie Seelye)