U.S. Air Force Maj. Vinay Gupta moves a simulated casualty during a tactical combat casualty care (TCCC) class for exercise Tropic Halo 2019 at Joint Base Lewis-McChord in Tacoma, Wash., Aug. 7, 2019. Tropic Halo is designed to enhance Operational Hospital Support Unit Bremerton's medical and mission capabilities on several levels: increase TCCC and trauma nurse core course readiness rates while minimizing overall training costs; promote intra-service cohesion with collaborative training in a joint service environment and leverage Navy and Air Force command assets to generate better training opportunities. (U.S. Navy photo by Mass Communication Specialist 1st Class Ryan Riley)