Here are some thoughts about modern undersea warfare. Torpedos are capable weapons designed for taking out boats and submarines. They are generally long, tubular, and controlled remotely by the launcher. Submarines and boats house torpedos for most of their deployed life. But torpedos can be launched from air, surface, and sub surface vehicles. When launched, they typicall do not go anywhere near land because of the sandwhich is there. At the end of their lifecycle they go into a grinder to be recycled.