Norma Grandberry, Booz Allen Hamilton medical readiness exercise facilitator, provides instruction to Airmen portraying victims during a Chemical, Biological, Radiological, Nuclear exercise at Keesler Air Force Base, Mississippi, Aug. 6, 2021. The Ready Eagle exercise tested the base's ability to respond to and recover from a mass casualty event. (U.S. Air Force photo by Kemberly Groue)