The Army next March will begin to deploy Talon robots from Waltham, Mass.-based Foster-Miller. The robots will be mounted with M240 or M249 machine guns, said a Foster-Miller spokesman. The units also can be mounted with a rocket launcher. Defense agencies have been testing an armed version of the Talon since 2003.

Putting guns on robotic vehicles is a natural evolution of the technology, which is being adopted to decrease risks to personnel in the field, the company said. Several robots, including the Talon and the PackBot from iRobot, have been used to conduct surveillance missions such as taking pictures inside the caves of Tora Bora, Afghanistan, during the conflict. Other robots have been mounted with "distruptors," guns that disable bombs and mines.