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.
U.S. Air Force Pararescueman Todd Popovich, assigned to the 48th Rescue Squadron, based at Davis-Monthan Air Force Base, Ariz., scans terrain from an Air Force HH-60 Pave Hawk helicopter over Davis-Monthan Oct. 11, 2011, during exercise Angel Thunder 2011.
A CH-47 Chinook flies over Hannagan Meadows, Az. during exercise Angel Thunder on Oct. 11, 2011.
Pararescuemen gather at Hannagan Meadows, Az. during exercise Angel THunder to search for mock casualties on Oct, 11, 2011.
A U.S. Air Force pararesuceman inspects his gear prior to executing a search and rescue mission during exercise Angel Thunder at Hannagan Meadows, Az. on Oct. 11, 2011.
A pararescueman runs across the field toward other pararescuemen to discuss search and rescue procedures during exercise Angel Thunder at Hannagan Meadows, Az. on Oct. 11, 2011.
Mock casualties head towards a CH-47 Chinook to receive medical attention at Hannagan Meadows, Az. on Oct. 12, 2011.
A U.S. Air Force pararescue man carries a mock casualty to a rendevzous point to receive medical attention during exercise Angel Thunder at Hannagan Meadows, Az. on Oct. 11, 2011.
A pararescueman treats a mock casualty during exercise Angel Thunder at Hannagan Meadows, Az. on Oct, 11, 2011.
U.S. Air Force Tech Sgt. Arthur Kakis, Pararescueman 103rd Rescue Squadron, rushes back to the rendezvous point to escort mock casualties onto the CH-47 Chinook at Hannagan Meadows, Az. during exercise Angel Thunder on Oct. 11, 2011.