STUDENT QUESTION Army Gen. Martin E. Dempsey, chairman of the Joint Chiefs of Staff, listens as a student asks a question during a Keystone leadership course at the National Defense University on Fort McNair in Washington D.C., Jan., 15, 2015. The course objective is to educate command senior enlisted leaders. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 109213-Q-KVI29-410.jpg Photo Gallery