Air Force 1st Lt. Elspeth Theis practices using a nasopharyngeal tube on Dal Latsha during tactical combat casualty care training here March 12, 2015, as part of Operational Contract Support Joint Exercise 2015. Operational Contract Support is a military instrument of power during all phases of operations. Theis is a contract officer stationed at McConnell Air Force Base, Kan., and Latsha is a contract administrator at the Defense Contract Management Agency in Boston, Mass. Staff Sgt. Veronica Montes)

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Keywords: 2015, air, airforce, army, bliss, contract, contracting, exercise, force, fort, joint, marines, military, navy, ocsjx-15, ocsjx15, operational, skills, states, support, united, usa, warrior