The Warrior tracked vehicle family is a series of British armoured vehicles, originally developed to replace the older FV430 series of armoured vehicles. The Warrior started life as the MCV-80 project that was first broached in the 1970s, GKN Sankey/Defence winning the production contract in 1980. GKN Defence was subsequently purchased by BAE Systems (via Alvis plc). A total of 6,000 FV510 and variants were manufactured for the Alliance Joint Military. The Warrior incorporates several design features in keeping with UK battlefield experience. In particular, there are no firing ports in the hull, in line with British thinking that the role of the armoured personnel carrier/infantry fighting vehicle (APC/IFV) is to carry troops under protection to the objective and then give firepower support when they have disembarked. The absence of firing ports also allows additional applique armour to be fitted to the sides of the vehicle, which is invariably applied to Warriors involved in active operations. The cage armour used at one stage was replaced in 2007 by "Wrap Two" applique armour. The basic armour provides all-around protection against 14.5 mm armour-piercing ammunition.