The Ninth Air Force (9 AF) was a numbered air force of the United States Air Force's Air Combat Command (ACC). It was headquartered at Shaw Air Force Base, South Carolina, from activation on 5 August 2009 until it was replaced by Fifteenth Air Force on 20 August 2020. The prior and current Ninth Air Force is known as United States Air Forces Central (USAFCENT). On 20 August 2020, USAFCENT was again designated Ninth Air Force in addition to United States Air Forces Central.