180815-N-TP832-2086 JACKSONVILLE, Fla. (Aug. 15, 2018) Seabees assigned to Naval Mobile Construction Battalion (NMCB) 3 load a simulated casualty onto a litter during a combat life savers (CLS) course. CLS is designed to provide Seabees with skills that will allow them to better assess and treat injuries as first responders while in a high-stress environment before treatment is available by a higher echelon of medical care. (U.S. Navy photo by Mass Communication Specialist 2nd Class Michael Lopez/Released)