U.S. Air Force Gen. Paul J. Selva, standing left, the incoming commander of U.S. Transportation Command, shakes hands with outgoing commander Gen. William M. Fraser III during a USTRANSCOM change of command ceremony at Scott Air Force Base, Ill., May 5, 2014. Secretary of Defense Chuck Hagel welcomed Selva to the post and presided over retirement proceedings for Fraser, who retired after 40 years of service.