Change of command
Lieutenant General Charles E. Stenner, Jr., Chief, Air Force Reserve and Commander, Air Force Reserve Command (left) stands attention to orders with Chief Master Sergeant Patricia Thornton, 4th Air Force Command Chief, and Major General Robert E. Duignan, Commander, 4th AF, during a change of command and retirement ceremony for General Duignan at March ARB, Calif., Jan. 25, 2009. (U.S. Air Force courtesy photo) (released)