Most people have seen robot soldiers in sci-fi films, but not everyone realises that to a limited extent they are already here.
There are already human controlled military robots in existence:
Many of these robots do useful jobs in very dangerous situations, such as checking for and disposing of explosives, mines or other hazards. However, many could be just as useful for fire fighters or the police, such as in roles checking for survivors in burning buildings.
However, these robots are guided by humans. What might happen if they were built to be self guiding, making their own decisions?
Read this article by Noel Sharkey, on the potential of autonomous soldier robots
Warfare without risk?