Most military vehicles can mount some sort of weapon, and even small protected vehicles like up-armored Hummers have top mounts. Manning them can be hazardous, however, as the story behind the Chavis Turret illustrates. Gunners are especially exposed to enemy sniper fire and counter-fire in urban environments, which figure prominently in current and expected war scenarios. In response, larger armored vehicles have begun using Remote Weapon Systems (RWS), consisting of a gun and sensors that sit on top of the vehicle. These systems are controlled from inside via joystick and screen, and all ammunition, sensors, etc. are part of the...