Tech. Sgt. Spencer Wallace, flight sergeant with the 50th Security Forces Squadron, responds to a simulated patient, while Senior Airman James Strohmeier, member with the 21st Security Forces Squadron, calls in a 9-line medevac request at Peterson Air Force Base, Colorado, Sept. 7, 2018. The Defender Challenge Air Force Space Command team has been training together for the past week in preparation for the competition.

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Photo credit: © Bob Collet / Alamy / Afripics
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Keywords: air, america, archive, armed, army, challenge, defence, defender, force, forces, military, navy, reportage, service, serviceman, servicemen, sfs, soldier, states, united, usa