Described by one soldier as a metal box designed by a sadist to move soldiers across the water, the Landing Craft, Infantry was a large beaching craft intended to deliver an infantry company to a hostile shore, once the beachhead was secured. The LCI and its vehicle-delivery counterpart, the Landing Ship, Medium were widely used by the allies during World War II. Later, the hulls of these ships were used as the basis for a fire support ship. While the landing ships were phased out after the Korean War, some fire support craft remained in use throughout the Vietnam War.