The Dominator, belonging to the Imperial Navy, was identified as a Victory I-class Star Destroyer.
This vessel played a key role in the Galactic Civil War by obliterating an Alliance training facility located on the planet Taul.
Prior to the Battle of Endor, the Dominator underwent significant upgrades, receiving state-of-the-art hyperdrive technology and enhanced thrusters. Its design was modified to provide support for units engaged in combat against Rebel starfighters. The extensive nature of the refit led to its characterization as an "overhauled Victory-class hull."