Staff Sgt. Ashley Davin low crawls through the mud in Amesbury, Mass., Aug. 11, 2012. Davin was participating in the Spartan Race, testing her strength, endurance and resilience against a course of challenging obstacles. Davin is assigned to the 102nd Security Forces Squadron. Senior Airman Jeremy Bowcock

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Keywords: .., 102nd, air, base, bay, buzzards, defense, force, guard, intelligence, massachusetts, military, national, otis, race, spartan, states, united, war, wing