BAE Systems Land & Armaments was created on June 24 2005, following the completion of BAE Systems plc's acquisition of United Defense and its merger with BAE Systems Land Systems. The L&A group is a subsidiary of BAE Systems Inc. and is responsible for the design, development and production of combat vehicles, ammunition, artillery systems, naval guns and missile launchers.

BAE Systems' 2005 Annual Report stated that the L&A group had sales of £1,266 million and EBITA of £42 million. This compares to sales of £482 million in 2004. BAE Systems plc (2006). "Annual Report 2005". Retrieved June 22, 2006.