Two Air Force Airmen, Survival, Evasion, Resistance, Escape candidates, pass the one-mile marker during a Physical Assessment and Stamina Test at Joint Base San Antonio-Lackland Medina Annex, Texas, Aug. 6, 2015. In order to pass the evaluation the candidates will carry a 60-pound rucksack for four miles in one hour. ( Air Force photo by Tech. Sgt. Chad Chisholm/Released)

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Size: 4468px × 2832px
Photo credit: © AB Forces News Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: antonio, candidate, lackland, medina, san, sere