U.S. Air Force crew members assigned to the 211th Rescue Squadron Alaska ANG, load ATV's onto their HC-130 King aircraft readying them for an air delivery along with personnel drops during Angel Thunder 2011, Oct. 15. Approximately 1,400 U.S. military, federal and state employees and coalition forces are participating in the 6th annual Angel Thunder Exercise. Angel Thunder is the world's largest military search and rescue exercise in the world.