Hurlburt Field (ICAO: KHRT, FAA LID: HRT) is a United States Air Force installation located in Okaloosa County, Florida, immediately west of the town of Mary Esther. It is part of the greater Eglin Air Force Base reservation and is home to Headquarters Air Force Special Operations Command (AFSOC), the 1st Special Operations Wing (1 SOW), the USAF Special Operations School (USAFSOS) and the Air Combat Command's (ACC) 505th Command and Control Wing. It was named for First Lieutenant Donald Wilson Hurlburt, who died in a crash at Eglin. The installation is nearly 6,700 acres (27 km2) and employs nearly 8,000 military personnel.