Dr Nigel Paling is the scientific advisor with the Government's Defence Science and Technology Laboratory. He explains that this virtual simulation, with the live simulation at a training arena in France, allows them to gather data to help the Government decide how to invest in the army in future.
More top news
Banksy celebrates 25 years of street art with a South Bank Sky Arts Award nomination for Dismaland.
Parents across the West are preparing to keep their children home from school this morning as part of unofficial strike action.
The agricultural event is now in its 157th year and although there was heavy rain forecast, it didn't deter the crowds.