 Lockheed Martin Aeronautics, the aviation division of Lockheed Martin, is also headquartered in Fort Worth, and the company's Missiles and Fire Control division is based in nearby Grand Prairie, along with the American division of Airbus Helicopters, Airbus Helicopters, Inc.. Bell Helicopter is headquartered in Fort Worth as well.Texas is home to two of the United States Army's largest facilities (in terms of geographic size), Fort Hood in Central Texas near Killeen and Fort Bliss near El Paso.In addition, Fort Sam Houston in San Antonio is home to the Brooke Army Medical Center, one of the Army's major hospitals and its only burn facility, and the Corpus Christi Army Depot in Corpus Christi, Texas is home to the world's largest helicopter repair and maintenance facility.