caption: Participants from of the U.S. Air Force Academy, Fort Carson, Cheyenne Mountain Air Force Station, Schriever and Peterson Air Force Base Colo., prepare to dodge zombies during the Zombie Tunnel 5K at Cheyenne Mountain Air Force Station Oct. 30, 2014. Nearly 700 people participated in the event which featured a run through the historic tunnel. (Air Force Courtesy photo)
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