U.S. Air Force Senior Airman Dannyel Butte, 325th Aerospace Medicine Squadron bioenvironmental engineering journeyman, assists Lt. Col. Linda Coates, 325th Aerospace Medicine Squadron commander, don a chemical protective suit at Tyndall Air Force Base, Fla., May 4, 2018. The chemical protective suit helps bioenvironmental engineering Airmen perform their job duties when exposure to chemical, biological, radiation and neurological agents is imminent. (U.S. Air Force photo by Airman 1st Class Delaney Gonzales/Released)