SHAW AIR FORCE BASE, S.C. -- Col. John Colombo, 20th FW Operations Group commander (left), Lt. Col. Tom Littleton, outgoing 20th FW Operations Support Squadron commander and Lt. Col. William Culver (right), new 20th FW OSS commander stand at attention as 20th FW Honor Guard members present the colors for the OSS change of command here April 11 at 10 a.m. inside Hangar 1200. (U.S. Air Force photo/Airman 1st Class Matthew Davis)