General Dynamics (GD) is an aerospace and defense company. It operates in four segments: Aerospace, Marine Systems, Combat Systems, and Technologies. The Aerospace segment focuses on business jets, aircraft repair, customer support, and custom completion services. The Marine Systems segment specializes in surface combatant and auxiliary ship design and construction. The Combat Systems segment produces and integrates land combat solutions, including wheeled and tracked combat vehicles, weapons systems, and munitions. The Technologies segment provides a range of services, technologies, and products to military, intelligence, federal civilian, and state customers.