U.S. Air Force Staff Sgt. Erica Jenkins, 81st Medical Operations Squadron family health clinic team lead, and Capt. Jennifer Thomas, 81st Aerospace Medicine Squadron base operational medicine clinic physician assistant, discuss patient triage during a mass casualty and response exercise on Keesler Air Force Base, Mississippi, April 17, 2019. The scenario for the two-day event included a simulated plane crash with debris landing both on and off base in crowds of people. The exercise tested base and local civilian emergency response organizations' ability to operate in a multi-agency and multi-jurisdiction crisis situation. (U.S. Air Force photo by Kemberly Groue)