U.S. Army UH-60 Black Hawk helicopters with the New York Army National Guard prepare to conduct aerial refueling operations with an Air Force HC-130J Combat King II aircraft assigned to the 79th Rescue Squadron April 8, 2013, over Davis-Monthan Air Force Base, Ariz., during exercise Angel Thunder 2013.
Angel Thunder is a joint service, interagency and multinational combat search and rescue exercise designed to provide training for personnel recovery assets in a variety of scenarios to simulate deployment conditions and contingencies. (DoD photo by Staff Sgt. Tim Chacon, U.S. Air Force/Released). Original public domain image from Flickr