Participants in the Maltz Challenge perform pushups at Kirtland Air Force Base, , March 9. The crossfit-style competition features a 400-meter run, and challenges in pullups, dips, pushups, situps and more. ( Air Force photo by Staff Sgt. Strong II)

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Photo credit: © AB Forces News Collection / Alamy / Afripics
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Keywords: air, base, force, kirtland