A ship of the line, alternatively written as ship-of-the-line, designated a kind of vessel within the Imperial Navy. In theory, vulture droid starfighters were not as powerful as the Imperial ships-of-the-line. Vulture droids fought against the ships-of-the-line belonging to Admiral Carlou Gendling's task force during the battle over Umbara. Venator-class Star Destroyers were classified as ships of the line.