GATES VISITS NAVAL ACADEMY Defense Secretary Robert M. Gates, left, walks with U.S. Army Lt. Gen. Peter Chiarelli, senior military assistant to the defense secretary, and his staff in front of Sampson Hall, U.S. Naval Academy, Annapolis, Md., April 11, 2008. SHARE: Download: Full Size (0.1 MB) Credit: VIRIN: 298970-L-YAW59-302.jpg Photo Gallery