Instructor Chat Marine Gen. Joseph F. Dunford Jr., chairman of the Joint Chiefs of Staff, speaks with instructors at the 25th Infantry Division's Tropic Lightning Academy and Jungle Operations Training Center on Schofield Barracks, Hawaii, Feb. 9, 2016. DoD Photo by Navy Petty Officer 2nd Class Dominique A. Pineiro SHARE IMAGE: Download Image: Full Size (2.69 MB) Tags: joint staff, Joseph F. Dunford Jr. , 25th infantry division, Schofield Barracks , Army, Chairman, Hawaii Photo By: Dominique A. Pineiro VIRIN: 160209-D-LP538-950.JPG Photo Gallery