Air Force Senior Airman Marquis D. Waters, left, Senior Airman Jacob N. Patterson, second from left, Capt. Hazel Seda, second from right, and Maj. Dennis A. Castro, right, both Flight Nurses, lower mock cardiac arrest patient Tech. Sgt. Tyra D. Everett onto a litter during an aeromedical evacuation training mission onboard a KC-135R Stratotanker over the Caribbean Sea, Aug. 27, 2017. Waters, Jacob are aeromedical evacuation technicians, and Seda, Castro are flight nurses assigned to the 514th aeromedical evacuation squadron, 514th Air Mobility Wing. Air Force photo by Master Sgt. Mark C. Olsen