Senior Airman Mark Grassel, 460th Space Communication Squadron Defense Red Switch Network technician, assembles a propriety DB25 amphenol cable to upgrade an existing circuit Oct. 20, 2016, on Buckley Air Force Base, Colo. These circuits are updated routinely to maintain mission readiness. (U.S. Air Force photo by Airman Holden S. Faul/ Released)
<br>Unit: 460th Space Wing
Airman Holden Faul
Taken on 20 October 2016
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