Final retreat ceremony honors AFMC commander Published May 18, 2012 WRIGHT-PATTERSON AIR FORCE BASE, Ohio -- Gen. Donald Hoffman, commander of Air Force Materiel Command, is saluted by a member of the base honor guard after accepting the flag at his final retreat ceremony May 17, 2012. The two were flanked by formations of AFMC military members and civilian employees. Hoffman will end a 42-year Air Force career when he retires June 5.