Marine Corps Reconnaissance Challenge competitor Cpl. Senteno, top, and Cpl. Estrada, representing Lance Cpl. Anderson, participate in a pool event during the anual Reconnaissance Challenge on Camp Pendleton, Calif., April 27, 2017. The Recon Challenge is an annual memorial event held by reconnaissance Marines in honor of those killed in action. Competitors hike a total of 24 miles, stoping at 10 checkpoints that consist of live fire ranges, pool events, obstacle courses. ( Marine Corps photo by Lance Cpl. Brooke Woods)

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Photo credit: © AB Forces News Collection / Alamy / Afripics
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Keywords: abstacle, brooke, camp, challenge, competition, corps, hike, kia, lcpl, marine, memorial, oq594, pendleton, recon, reconnaissance, soi-west, swimming, woods