While fully-armed robots are still in prototype and testing phases, they do exist. Today, there are hundreds of drones and other mechanized tools in use on the battlefield, primarily used for search and rescue and cargo operation.
Already, remote controlled drones are making deadly strikes, and soon, we may see drastic advances in battlefield droids, and even autonomous fighters.
The fully armed Modular Advanced Armed Robotic System (MAARS) is a robot capable of working on the front lines. It features multiple onboard day and night cameras and motion detectors, an acoustic microphone, a hostile fire detection system, and a speaker system. It also has non-lethal laser dazzlers and audio deterrents, less-than-lethal grenades, menacing grenade launchers, and medium machine guns.
Here's a look at some of the robots that could soon be ready to wage a war near you.