Leviathan

The Leviathan was an Imperial-class Star Destroyer that served the Imperial Navy during the Imperial Era. At some point, it escorted the Imperial war minister to an Imperial supply moon alongside another Imperial Star Destroyer, although the group was attacked by rebel starfighters. Imperial TIE fighters defeated the rebels, although the war minister was pursued to the supply moon by more rebels in X-wing starfighters.

After attacking a starfighter factory on the moon, the rebels were engaged by Dark Lord of the Sith Darth Vader, who defeated the majority of the group before pursuing the final starfighter to a rebel outpost at Jamiri. Vader, who had contacted the Leviathan, then attacked the base alongside the Star Destroyer and a group of TIE fighters.

Text and facts from the “Leviathan” article on Wookieepedia, licensed under CC BY-SA 3.0. Modified for this site.