Senior Airman Savannah Johnson, 349th Aeromedical Squadron medical technician, applies a bandage to a moulaged Staff Sgt. Rickey Popplewell, 129th Medical Group medical technician, during a mass casualty training exercise at Travis Air Force Base, Calif., on May 19, 2017. The 349th MDG conducted a week-long training session for medical Airman that culimnated in a mass casualty training scenario. (U.S. Air Force photo/Staff Sgt. Daniel Phelps)