Condor Crest exercise
PETERSON AIR FORCE BASE, Colo. – Medical responders from the 21st Medical Group treat a casualty from an active shooter exercise in front of the 21st Mission Support Group building at Peterson Air Force Base, Colo., May 16, 2018. The active shooter exercise was part of a Condor Crest, carried out May 14 – 17, 2018. (U.S. Air Force photo by Robb Lingley)