U.S. Air Force Maj. James Geoppinger completes his

U.S. Air Force Maj. James Geoppinger completes his preflight check of a F-16 Fighting Falcon for a mission during exercise Vigilant Shield 12 on Naval Air Station Key West, Fla., Nov. 6, 2011. The exercise in Key West will be the "first-ever proof of concept" for the military's Joint Deployable Integrated Air and Missile Defense System, a collection of high-end radars and missile systems as well as aircraft that work in tandem in the event of a threat to the continental United States. (U.S. Air Force photo by Tech. Sgt. Dennis J. Henry Jr.)