Brig. Gen. Eric W. Crabtree assumed command of the Air Reserve Personnel Center in Denver at a change-of-command ceremony Sept. 20, 2007. General Crabtree, the former commander of the 446th Airlift Wing, McChord Air Force Base, Wash., replaced Col. Ann C. Shippy, who retired from the Air Force. (U.S. Air Force photo/Mike Molina)