A U.S. Air Force Airman from the 633rd Civil Engineer Squadron fire department check an Airman’s vitals during an active chemical, biological, radiological and nuclear (CBRN) response training at Joint Base Langley-Eustis, Virginia, March 29, 2019. For this training, the 633rd CES Fire Department, the 633rd CES explosive ordnance disposal, the 192nd Wing emergency management flight and the 633rd Aerospace Medicine Squadron bioenvironmental engineering flight responded to a simulated chemical munition threat. (U.S. Air Force photo by Senior Airman Anthony Nin Leclerec)