JOINT SECURITY TRAINING U.S. Deputy Defense Secretary William J. Lynn III tours the Joint Security Academy Southwest in Afghanistan, Oct. 27, 2010. At the academy, U.S. Marines and Navy corpsmen train Afghan soldiers and police during an eight-week course, which includes classes on explosive ordinance disposal, medical skills, driving and marksmanship. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 772055-R-OFK59-871.jpg Photo Gallery