Meroka CIWS is a big gun thing that is used on ships to protect them from bad things that might want to hurt them. It has a lot of little guns that shoot really fast at anything that gets too close to the ship and tries to harm it. The Meroka CIWS is very smart too, it has special computer machines that can tell when something bad is close and then it tells the little guns to shoot really fast to stop the bad thing. This way the ship stays safe and everyone inside the ship can feel protected.