BAE Systems
BAE Systems was formed in 1999 by the merger of British Aerospace (BAe) and Marconi Electronic Systems (MES). BAe's land systems business was RO Defence, a major manufacturer of explosives, ammunition and small arms. MES owned Vickers Shipbuilding and Engineering Ltd, manufacturer of the M777 howitzer.
BAE Systems Land & Armaments is a wholly owned subsidiary of BAE Systems Plc. and is responsible for the design, development and production of combat vehicles, ammunition, artillery systems, naval guns and missile launchers. This is the largest company of this type in the world. The company was formed on 24 June 2005, following the completion of BAE Systems' acquisition of United Defense in 2004 and its merger with BAE Systems Land Systems. In 2007 BAE Systems acquired Armor Holdings adding to the size of Land & Armaments significantly.