Navy Capt. Mike Crane (from left) discusses training objectives with Cdr. John Picco and Lt. Cmdr. Joel Lang during Vigilant Shield ’11, a NORAD and U.S. Northern Command exercise that ensures the interoperability of numerous Defense Department assets in support of the president’s national security strategy. The three-man Navy team worked as the Navy liaison element for Air Forces Northern, USNORTHCOM’s air component, based at Tyndall Air Force Base, Fla. (U.S. Air Force photo/Capt. Jared Scott)