CBRN training

An Airman assigned to the Air Force Reserve’s 403rd Wing at Keesler Air Force Base, Miss., assists their wingman with donning protective gear during a Chemical, Biological, Radiation and Nuclear defense course Feb. 6, 2022. CBRN defense training is a routine requirement for all Airmen. (U.S. Air Force photo by Staff Sgt. Kristen Pittman)