170323-N-AO823-066 PENSACOLA, Fla. (March 28, 2017) Hospital Corpsman 2nd Class Blake Kemp, left, attempts to distract Hospital Corpsman 2nd Class Jeffrey Cha during a field exercise as part of a tactical combat casualty care instructor course at Naval Hospital Pensacola. (U.S. Navy photo by Mass Communication 2nd Class Michael J. Lieberknecht/Released)