GoRuck Light Challenge participants flip a tractor-sized tire Sept. 12, 2015, at Travis Air Force Base, California. For nearly six hours participants dragged tractor-sized tires, overhead carried river rafts, completed rigorous body-weight based exercises and rucked more seven miles. ( Air Force photo/Senior Airman Charles Rivezzo)

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Size: 4800px × 3200px
Photo credit: © AB Forces News Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: afb, air, fitness, force, goruck, travis