Tech. Sgt. Cleigh Robbins, boom operator assigned to the 509th Weapons Squadron, prepares a KC-135 Stratotanker before participating in defensive counter air on Nellis Air Force Base, Dec. 14, 2016. Students from the USAFWS class 16-B completed their five-and-a-half month course with the last sortie of advanced integration, defensive counter air, taking place over the Nevada Test and Training Range.

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Photo credit: © Conner Flecks / Alamy / Afripics
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Keywords: air, archive, armed, dca, defence, force, forces, military, reportage, school, servicemen, usa, usafws, weapons