Three Colombian air force A-29 Super Tucanos line up on the runway during Angel Thunder at Davis-Monthan Air Force Base, Ariz., May 5, 2014. Angel Thunder provides personnel recovery and combat search and rescue training for combat aircrews, pararescuemen, intelligence personnel, battle managers and joint search and rescue center personnel. (U.S. Air Force Photo by Airman 1st Class Chris Massey/Released)