DAVIS-MONTHAN AIR FORCE BASE, Arizona--New York Air National Guard HH-60 PAvehawk helicopters assigned to the 106th Rescue Wing prepare to conduct aerial refueling operations with an Air Force HC-130J Combat King II aircraft assigned to the 79th Rescue Squadron here on , April 8, 2013, 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.