Army Sgt. 1st Class Eric Pettengill, 380th Ground Liaison Detachment, guides a Stryker driver and crew assigned to the 1st Battalion, 14th Infantry, 2nd Stryker Brigade Combat Team aboard a C-17 Globemaster III during a validation exercise on the flightline at Joint Base Pearl Harbor Hickam, Hawaii, Oct. 17, 2013. The MEV is the Battalion Aid Station for brigade units, providing treatment for serious injury and advanced trauma cases.

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Photo by: Tech. Sgt. Jerome S. Tayborn |  VIRIN: 131017-F-HL283-092.JPG