Marine Gen. Joseph F. Dunford Jr., chairman of the Joint Chiefs of Staff, speaks with an instructor at the 25th Infantry Division's Tropic Lightning Academy and Jungle Operations Training Center on Schofield Barracks, Hawaii, Feb. 9, 2016. The center trains soldiers on survival, communication, navigation, waterborne operations, traversing, knots, evasion, marksmanship and patrol base operations in a jungle environment. DoD Photo by Navy Petty Officer 2nd Class Dominique A. Pineiro