Secretary of Defense Robert M. Gates takes the stage to speak. Secretary of Defense Robert M. Gates takes the stage to speak to more than 1200 students, faculty, ROTC Cadets and civilians about the achievements of the all-volunteer military force and the stresses and strains it faces at Duke University, N.C., on Sept. 29, 2010. SHARE IMAGE: Download Image: Full Size (0.03 MB) Photo By: VIRIN: 241520-U-NVM49-596.jpg Photo Gallery