Airmen from the 28th Medical Group set up a decontamination tent during an exercise at Ellsworth Air Force Base, S.D., Sept. 13, 2019. Airmen who participated in the decontamination exercise were timed and graded on their ability to respond to a simulated Chemical, Biological, Radiological and Nuclear threat by donning their hazardous materials suits, setting up a DECON station, and cleaning a training dummy to ensure they were free of any contaminates. (U.S. Air Force photo by Senior Airman Thomas Karol)