But that is only the beginning. By 2015, the US Department of Defense plans that one third of its fighting strength will be composed of robots, part of a $127bn (£68bn) project known as Future Combat Systems (FCS), a transformation that is part of the largest technology project in American history.

The US army has already developed around 20 remotely controlled Unmanned Ground Systems that can be controlled by a laptop from around a mile away, and the US Navy and US Air Force are working on a similar number of systems with varying ranges. According to a US general quoted in the US Army's Joint Robotics Program Master Plan (http://tinyurl.com/yl7s52 - 13.8MB PDF), "what we're doing with unmanned ground and air vehicles is really bringing movies like Star Wars to reality". The US military has 2,500 uncrewed systems deployed in conflicts around the world. But is it Star Wars or I, Robot that the US is bringing to reality?