The Army has been showing off its newest and most advanced vehicle - a remote-controlled armoured digger.
Each 'Terrier' costs six million pounds to build, and weighs as much as 15 transit vans.
The vehicles are driven by using a video game-style controller, which means soldiers can carry out a number of tasks a safe distance away.
Our Correspondent, Martin Dowse, has been to Bovington Camp in Dorset to see 'The Terrier' in action.
The interviewees are: Colonel Simon Hulme, Assistant Director, Military Engineering Capability; and David Bond from BAE Systems.
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The 22 year old man is seriously injured in hospital. Police believe a baseball bat and iron bar may have been used in the attack