Petty Officer 2nd Class Tyler Gagnon, a maritime enforcement specialist from the Marine Force Protection Unit, and Petty Officer 2nd Class Ryan Rivera, a machinery technician from Coast Guard Cutter Wahoo, rest after a 12-mile hike in full combat gear as they wait for their turn to cross Joint Base Lewis-McChord's American Lake to get to the finish line of the Army's Mangudai challenge. The Mangudai is an Army sponsored challenge that tests its participants endurance over the course of three days. (U.S. Coast Guard photo by Petty Officer 3rd Class Jordan Akiyama)