Boxer Infantry Fighting Vehicle begins user trials for UK Army: Boxer Infantry Vehicle produced by German defence company Rheinmetall has started customer verification and validation trials for the UK Army’s Mechanised Infantry Vehicle (MIV) programme. These trials are taking place at Millbrook Proving Ground at Bedford in United Kingdom. These trials will qualify the design against the MIV technical requirements, demonstrating the Boxer vehicle’s capability and performance for the British Army, said the company.