Samsung SGR-A1

The Samsung SGR-A1 is a South Korean military robot sentry designed to replace human counterparts in the demilitarized zone at the South and North Korea border. It is a stationary system made by Samsung defense subsidiary Samsung Techwin.

History
In 2006, Samsung Techwin announced a $200,000, all weather, 5.56 mm robotic machine gun and optional grenade launcher to guard the Korean DMZ. It is capable of tracking multiple moving targets using IR and visible light cameras, and is under the control of a human operator. The Intelligent Surveillance and Guard Robot can "identify and shoot a target automatically from over two miles (3.2 km) away." The robot, which was developed by a South Korean university, uses "twin optical and infrared sensors to identify targets from 2.5 miles (4 km) in daylight and around half that distance at night."

It is also equipped with communication equipment (a microphone and speakers), "so that passwords can be exchanged with human troops." If the person gives the wrong password, the robot can "sound an alarm or fire at the target using rubber bullets or a swivel-mounted K-3 machine gun." South Korea's soldiers in Iraq are "currently using robot sentries to guard home bases."