U.S. Airmen from March Air Reserve bse, Calif., prepare to unload a C-17 Globemaster III aircraft, transporting service members and equipment to take part in Operational Readiness Exercise, Crisis Challenge 09-12B, at the Combat Readiness Center in Gulfport, Miss., Sept. 17, 2012. During the exercise, evaluators determine wing members’ ability to mobilize, deploy, survive in combat environments and redeploy to home station. (U.S. Air Force photo / Tech. Sgt. Efren Lopez)
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