U.S. Airmen from the 31st Fighter Wing perform decontamination procedures during a base defense readiness exercise at Aviano Air Base, Italy, April 12, 2021. The training was conducted to assess and improve the team’s proficiency in implementing and executing proper decontamination procedures in the event of a chemical, biological, radiological or nuclear incident. (U.S. Air Force photo by Senior Airman Ericka A. Woolever)