The Battle of Rordak unfolded on the Outer Rim planet of Rordak. This engagement occurred during the Great Galactic War, a period of conflict spanning from 3681 to 3653 BBY, between the Galactic Republic and the reconstituted Sith Empire. Sometime after 3673 BBY, Republic forces, under the command of Alderaanian General Bouris Ulgo, clashed with an Imperial battle group. This Imperial force was commanded by the Moff Ceptor. Victory was achieved by the Republic when General Ulgo himself led a boarding party onto Moff Ceptor's battle cruiser, resulting in the Imperial defeat. Years later, during the Alderaan Civil War, Bouris Ulgo, who had since become a King, believed his past heroism at the Battle of Rordak should shield him from Republic oversight regarding the bloody conflict occurring on his homeworld.
The single mention of the Battle of Rordak within Star Wars Legends material exists within Star Wars: The Old Republic. This massively multiplayer online role-playing video game, developed by LucasArts and BioWare, was released in 2011. Ulgo references the battle during the Republic mission titled "Usurper," which takes place on Alderaan.