Air Force 25th Fighter Squadron personnel, left, compete with Army 35th Air Defense Artillery Brigade personnel to fill a water cooler during the Mustang Challenge relay at Osan Air Base, Republic of Korea, Sept. 27, 2018. The relay was a combined idea from 51st Civil Engineer Squadron emergency management and Osan Red Cross, where teams ran a six-station course focusing on disaster preparation skills.

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Size: 1732px × 1155px
Photo credit: © David Wa / Alamy / Afripics
License: Licensed
Model Released: No

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