General Dynamics Corporation provides business aviation; combat vehicles, weapons systems, and munitions; shipbuilding design and construction; and information systems, technologies, and services. The company operates through four segments: Aerospace, Combat Systems, Marine Systems, and Information Systems and Technology. The Aerospace segment designs, manufactures, and services mid-size and large-cabin business-jet aircraft for corporate, government, and individual customers. The Combat Systems segment offers wheeled armored combat and tactical vehicles; tracked main battle tanks and infantry fighting vehicles; guns and ammunition-handling systems; ammunition and ordnance; mobile bridge systems; passive, active, and reactive armor; chemical, biological, and explosive detection systems; electronic counter-measures; and composite products primarily for the United States military and its allies. The Marine Systems segment designs, builds, and supports submarines and surface ships for the U.S. Navy and commercial ships. It offers products, including nuclear-powered submarines; surface combatants; auxiliary and combat-logistics ships; commercial ships; engineering design support; and overhaul, repair, and support services. The Information Systems and Technology segment designs, manufactures, and delivers communications network systems, ruggedized computers, command-and-control systems, and operational hardware; wireline and wireless voice, video, and data networks; and mission simulation and training services. In addition, the company provides signals and information collection, processing, and distribution systems; special-purpose computing; data mining and fusion; special-mission satellites and payloads; and information operations services. It operates in North America, Europe, the Middle East, South America, Africa, and Asia/Pacific. General Dynamics Corporation was founded in 1899 and is based in Falls Church, Virginia.