190521-Z-OL842-1070
U.S. Air Force Airman 1st Class Josue Gerena, a medic with the 193rd Special Operations Medical Group Detachment 1, Pennsylvania Air National Guard, provides security during Tactical Combat Casualty Care training, May 21, 2019, at Annville, Pennsylvania. The TCCC training focused on three phases of care: care under fire, tactical field care, and tactical evacuation care. (U.S. Air National Guard photo by Staff Sgt. Tony Harp)