Marine Corps Sgt. Jessi Estrada, Instructor Group, Marine Combat Training Battalion, School of Infantry East, a native of Gillett, Pennsylvania, helps his teammate during the 2022 Iron Mike Challenge on Marine Corps Base Quantico, Virginia, May 7, 2022. Competitors from across the Marine Corps were given 12 hours to complete the over 20 mile course, which culminated the use of core skills with multiple physical challenges.

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Keywords: basic, challenge, iron, johnson, mike, mitchell, quantico, school, tbs, training