The Mechanised Infantry Vehicle (MIV) is the British Army's concept of an 8 × 8 wheeled vehicle. On 31 March 2018 the United Kingdom rejoined the Boxer (armoured fighting vehicle) programme in order to move to an assessment phase, which may see the Boxer selected. On 19 July 2018 via a voluntary transparency notice the UK MoD disclosed its intent to order between 400 and 600 Boxers in four variants plus driver training vehicles, reference vehicles and support. The contract will contain options to increase the quantity of vehicles by up to an additional 900.