JUMP LESSON As seen through a night-vision device, a U.S. Air Force airman prepares students during a jump mission as part of exercise Emerald Warrior near Fort Walton Beach, Fla., March 16, 2010. U.S. Special Operations Command personnel are conducting the 19-day training exercise, which provides troops with an opportunity to participate in realistic urban-warfare training scenarios at multiple sites along Florida's Gulf Coast. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 139217-D-CEZ51-476.jpg Photo Gallery