Senior Airman Codee Potts, 81st Infrastructure Division firefighter, prepares to use a fire hose during a Chemical, Biological, Radiological, Nuclear and Explosive exercise scenario, April 21, 2016, Keesler Air Force Base, Miss. The Force Protection Condition exercise scenario simulated an intruder entering the hazardous waste 90-day accumulation site, where an explosion occurred causing a mass casualty event. The exercise tested the base’s capability to react to and recover from a mass casualty event. (U.S. Air Force photo by Kemberly Groue)

Airman 1st Class David Brown, 336th Training Squadron student, portrays a “victim” receiving medical triage during a Chemical, Biological, Radiological, Nuclear and Explosive exercise scenario, April 21, 2016, Keesler Air Force Base, Miss. The Force Protection Condition exercise scenario simulated an intruder entering the hazardous waste 90-day accumulation site, where an explosion occurred causing a mass casualty event. The exercise tested the base’s capability to react to and recover from a mass casualty event. (U.S. Air Force photo by Kemberly Groue)

An 81st Infrastructure Division firefighter follows decontamination procedures on Airman 1st Class David Brown, 336th Training Squadron student, as he portrays a “victim” who was contaminated during a Chemical, Biological, Radiological, Nuclear and Explosive exercise scenario, April 21, 2016, Keesler Air Force Base, Miss. The Force Protection Condition exercise scenario simulated an intruder entering the hazardous waste 90-day accumulation site, where an explosion occurred causing a mass casualty event. The exercise tested the base’s capability to react to and recover from a mass casualty event. (U.S. Air Force photo by Kemberly Groue)

81st Aerospace Medicine Squadron bioenvironmental engineering technicians and 81st Infrastructure Division firefighters approach the decontamination site during a Chemical, Biological, Radiological, Nuclear and Explosive exercise scenario, April 21, 2016, Keesler Air Force Base, Miss. The Force Protection Condition exercise scenario simulated an intruder entering the hazardous waste 90-day accumulation site, where an explosion occurred causing a mass casualty event. The exercise tested the base’s capability to react to and recover from a mass casualty event. (U.S. Air Force photo by Kemberly Groue)

Roger Schwartz, Base Operations Support Emergency Management operations specialist, analyzes the suspected product to identify an unknown substance during a Chemical, Biological, Radiological, Nuclear and Explosive exercise scenario, April 21, 2016, Keesler Air Force Base, Miss. The Force Protection Condition exercise scenario simulated an intruder entering the hazardous waste 90-day accumulation site, where an explosion occurred causing a mass casualty event. The exercise tested the base’s capability to react to and recover from a mass casualty event. (U.S. Air Force photo by Kemberly Groue)

James Donnett, 81st Infrastructure Division fire chief, briefs the incident action plan during a Chemical, Biological, Radiological, Nuclear and Explosive exercise scenario, April 21, 2016, Keesler Air Force Base, Miss. The Force Protection Condition exercise scenario simulated an intruder entering the hazardous waste 90-day accumulation site, where an explosion occurred causing a mass casualty event. The exercise tested the base’s capability to react to and recover from a mass casualty event. (U.S. Air Force photo by Kemberly Groue)

Airman Alex Rothrock and Airman 1st Class David DeLeon, 336th Training Squadron students, portray “victims” during a Chemical, Biological, Radiological, Nuclear and Explosive exercise scenario, April 21, 2016, Keesler Air Force Base, Miss. The Force Protection Condition exercise scenario simulated an intruder entering the hazardous waste 90-day accumulation site, where an explosion occurred causing a mass casualty event. The exercise tested the base’s capability to react to and recover from a mass casualty event. (U.S. Air Force photo by Kemberly Groue)