'A WATER curtain system on ships is a defense mechanism designed to create a protective barrier of water around the vessel to ward off external threats, such as water cannon attacks, or boarding by sea pirates or criminals.

High-pressure water curtain systems can be manually or automatically activated, depending on the level of threat detected. Some advanced systems may be equipped with sensors, cameras and control mechanisms to detect and respond to potential attacks effectively, providing an additional layer of protection against various maritime threats.'