BILATERAL MEETINGS U.S. Defense Secretary Leon E. Panetta, center, engages in bilateral meetings with Mexican Defense Secretary Gen. Guillermo Galvan Galvan in Ottawa, Ontario, March 27, 2012. Panetta and Galvan later joined trilateral meetings with Canadian Defense Minister Peter MacKay. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 907693-F-FPH51-702.jpg Photo Gallery