Lt. Col. Colby Arends, 97th Communications Squadron (CS) commander, continues his sweep of the grounds during a readiness exercise at Altus Air Force Base, Oklahoma, Feb. 23, 2023.The 97 CS Airmen kicked off their readiness training by donning mission-oriented protective posture level-four gear while completing their daily tasks, ensuring accountability, and doing a simulated sweep to detect and report any unidentified objects. (U.S. Air Force photo by Airman1st Class Kari Degraffenreed)