U.S. Air Force Staff Sgt. Terrance Thomas, 633rd Medical Group emergency technician, and Senior Airman Cody Blevins, 633rd MG paramedic, preforms an ambulance equipment check at Joint Base Langley-Eustis, Va., Jan 13, 2017. Ambulance services respond to all 911 calls on base to help patients while on-scene and transport them to the hospital if needed. (U.S. Air Force photo by Airman 1st Class Tristan Biese)