U.S. Air Force Pararescueman Master Sgt. Jules Roy, 103rd Rescue Squadron, starts an All Terrain Vehicle that was dropped with him from a C-130 Hercules during exercise Angel Thunder in Gila Bend, Ariz., Oct. 15. Approximately 1,400 U.S. military, federal and state employees and coalition forces are participating in the 6th annual Angel Thunder Exercise, the world's largest military Combat Search and Rescue Exercise.