General Dynamics Corporation is an aerospace and defense company that offers a portfolio of products and services in business aviation; combat vehicles, weapons systems and munitions; communications and information technology systems and solutions, and military and commercial shipbuilding. The Company operates through four business groups: Aerospace, Combat Systems, Information Systems and Technology and Marine Systems. Aerospace group designs, manufactures and outfits a family of Gulfstream business-jet aircraft and provides aircraft services. Combat Systems group is engaged in systems engineering, spanning design, development, manufacture and support of military vehicles, weapons systems and munitions. Marine Systems group designs, builds and supports submarines and surface ships. Information Systems and Technology group provides technologies, products and services that support a range of military, federal/civilian and commercial information-systems requirements.