At one time, Lubbock was home to Reese Air Force Base, located west of the city. It was established in August 1941, during the defense build-up prior to World War II (1941-1945), by the United States Department of War and the U.S. Army as Lubbock Army Airfield. It served the old U.S. Army Air Forces, and later the U.S. Air Force (USAF), after reorganization and establishment in 1947. The USAF base's primary mission throughout its existence was pilot training. The base was closed 30 September 1997, after being selected for closure by the Base Realignment and Closure Commission in 1995, and is now a research and business park called Reese Technology Center.