The Relentless-class is a USR Heavy Cruiser. Despite being similar in size and bulk to the Reverence-class Grand Cruiser, it has a very different role, being intended for use against enemy capital ships at long range. The Relentless-class is often used to support large fleet engagements, disabling the largest and most dangerous ships at long distances, or in planetary defence scenarios, firing on warships before they can get close enough to begin planetary assault. It can also preform long range tactical bombardment of a planet, causing significant damage.