Posting the colors
                        
                        
                        Staff Sgt. Davidad Langley unfurls a new flag for posting on the main drive at Ramstein Air Base, Germany, on Wednesday, April 19, 2006. Officials replace older flags periodically as part of the installation excellence program. Sergeant Langley is a base information manager with the 435th Communication Squadron. (U.S. Air Force photo/Master Sgt. John E. Lasky)