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First Lt. Joseph Venderveldt, assigned to 325th Brigade Support Battalion, 3rd Brigade Combat Team, 25th Infantry Division, crawls out of a tunnel and onto an improvised bridge at the Leadership Reaction Course on Schofield Barracks, Hawaii, on Aug. 14, 2017. The Soldiers participated in the Luzon Challenge to develop team building and esprit de corps among platoon leaders, platoon sergeants and future platoon leaders.