Fort Bliss is a United States Army post in the U.S. states of New Mexico and Texas, with its headquarters located in El Paso, Texas. Named in honor of LTC William Bliss (1815-1853), a mathematical genius who was the son-in-law of President Zachary Taylor, Ft. Bliss has an area of about 1700sqmi; it is the largest installation in FORSCOM (United States Army Forces Command) and second-largest in the Army overall (the largest being the adjacent White Sands Missile Range). The portion of the post located in El Paso County, Texas, is a census-designated place with a population of 8,591 as of the time of the 2010 census. Fort Bliss provides the largest contiguous tract (1500sqmi) of restricted airspace in the Continental United States, used for missile and artillery training and testing, and at 992,000 acres boasts the largest maneuver area (ahead of the National Training Center, which has 642,000 acres).Fort Bliss is home to the 1st Armored Division, which returned to US soil in 2011 after 40 years in Germany. The division is supported by the 15th Sustainment Brigade. The installation is also home to the 32nd Army Air & Missile Defense Command, the 11th Air Defense Artillery Brigade, the 212th Fires Brigade (now reflagged as the 1st Armored Division Artillery Brigade), and the 402nd Field Artillery Brigade.