and enlisted airmen across the entire Air Force as a result of the end of the Cold War. During his time as chief of staff, he oversaw the disestablishment of Strategic Air Command (SAC), Tactical Air Command (TAC), Military Airlift Command (MAC), Air Force Systems Command (AFSC), Air Force Logistics Command (AFLC), and Air Force Communications Command (AFCC), with assets transferred primarily to the newly established Air Combat Command (ACC), Air Mobility Command (AMC), Air Force Materiel Command (AFMC) and the then-Air Force Communications Agency. His tenure also oversaw the merging of Air Training Command (ATC) and Air University (AU) into the Air Education and Training Command (AETC). McPeak pushed through major organizational changes in the Air Force aimed at streamlining and emphasizing operations and combat readiness. Much of his tenure focused on elevating the status of flight operations, especially single-seat fighter pilots, some say at the expense of multi-seat fighter, bomber and reconnaissance aircraft and personnel, cargo and air refueling aircraft and personnel, and non-flying career fields. He also created the Air Force Expeditionary Wing concept, a fusion of combat forces and support into a single organization. He also transferred several flying wing and space wing command billets to brigadier generals, even though previously these had been commanded by colonels. However, McPeak is best remembered by many current and since-retired Air Force personnel for the sweeping changes he made to the Air Force's service dress uniform, especially for commissioned officers. Worn by personnel during most garrison duties, the new version was a radical departure from the earlier version, which was essentially the same design as the then-U.S. Army service uniform (the U.S. Air Force was originally the U.S. Army Air Corps and then the U.S. Army Air Forces), but with fewer insignia and in blue. In addition to a new three-button design with fewer and non-buttoning pockets, it changed the rank insignia for officers to use naval-style sleeve stripes, as opposed to metal pins on shoulder straps. Because of the new uniform's resemblance to both commissioned officer's uniforms of the U.S. Navy and those of commercial airline pilots, the McPeak uniform was said to be unpopular with Air Force service members. Some uniform changes were subsequently reversed by his successor. The basic redesign continues to be worn to this day, but the navalized sleeve braid rank insignia was eliminated and shoulder straps with pin-on rank for officers reinstated. McPeak's