General Dynamics Corporation operates as an aerospace and defense company worldwide. It operates through four segments: Aerospace, Marine Systems, Combat Systems, and Technologies. The Aerospace segment produces and sells business jets; and offers aircraft maintenance and repair, management, aircraft-on-ground support, customer support and custom completion services, modifications, upgrades, and lifecycle sustainment support services. The Marine Systems segment designs and builds nuclear-powered submarines, surface combatants, and auxiliary ships for the United States Navy and Jones Act ships for commercial customers, as well as provides maintenance, modernization, and lifecycle support services for navy ships; offers and program management, planning, engineering, and design support servic…