Fort Huachuca

Fort Huachuca is a United States Army installation under the command of the United States Army Installation Management Command. It is located in Cochise County, in southeast Arizona, about 15 miles (24 km) north of the border with Mexico. Beginning in 1913, for 20 years the fort was the base for the "Buffalo Soldiers", the 10th Cavalry Regiment. During the buildup of World War II, the fort had quarters for more than 25,000 men. In 2010, Fort Huachuca has a population of roughly 6,500 active duty soldiers, 7,400 family members and 5,000 civilians. Fort Huachuca can have well over 18,000 people on post during the peak hours of 0700 and 1600, M-F, making it one of the busiest transient installations.

Sierra Vista, which annexed the fort in 1971, is located south and east of the post, and Huachuca City is to the north and east. Major tenants are the NETCOM/9th Signal Command (A) and the United States Army Intelligence Center. Libby Army Airfield is located on post and shares the runway with Sierra Vista Municipal Airport; it was on the list of alternate landing locations for the space shuttle, though was never used as such.

Fort Huachuca is also the headquarters of Army Military Auxiliary Radio System (MARS). Other tenant agencies include the Joint Interoperability Test Command, Information Systems Engineering Command (ISEC) and the Electronic Proving Ground.

The fort is also home to a radar-equipped aerostat, one of a series maintained for the Drug Enforcement Administration by Lockheed Martin. The aerostat is based northeast of Garden Canyon and, when extended, supports the DEA drug interdiction mission by detecting low-flying aircraft attempting to penetrate the United States.

The fort is also the home to the Western Division of the Advanced Airlift Tactics Training Center (AATTC) which is based at the 139th Airlift Wing, Rosecrans Air National Guard Base, Saint Joseph, Missouri.