Two Royal Air Force pilots watch out of the window of their Airbus 320 "Head of State" aircraft as Prince Charles and his wife, Camilla, the Duchess of Cornwall, arrive by motorcade and transit to the aircraft at Joint Base Andrews, Md., March 20, 2015. This was the prince and duchess’ third official trip to the U.S. (U.S. Air Force photo by Senior Master Sgt. Kevin Wallace/RELEASED)
Senior Master Sgt. Kevin Wallace
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