CHAIRMAN'S LESSON Army Gen. Martin E. Dempsey, chairman of the Joint Chiefs of Staff, teaches a class to cadets at Lincoln Hall during his visit to the U.S. Military Academy at West Point, N.Y., March 27, 2014. During the class, he discussed military relations, his role as the chairman and the difference between direct and indirect power. SHARE: Download: Full Size (0.04 MB) Credit: VIRIN: 474722-D-GRX85-399.jpg Photo Gallery