Air Force Chief of Staff Gen. Norton Schwartz gives the oath of office to Gen. Larry Spencer during a promotion ceremony at the Pentagon, July 27, 2012. Spencer will become the new Air Force Vice Chief of Staff. (U.S. Air Force photo/Michael J. Pausic) Gen. Larry Spencer’s sons Larry and Derrick pin new rank to his uniform during a promotion ceremony at the Pentagon, July 27, 2012. Spencer will become the new Air Force Vice Chief of Staff. (U.S. Air Force photo/Michael J. Pausic)