The Allusis functioned as a starship of the Galactic Republic, specifically a Valor-class cruiser. Aboard this vessel was the Astromech droid B5-2T.
This ship received its designation to honor Belth Allusis, the Jedi Master who perished during the Great Galactic War while bravely commanding the last defense of the Bothawui planetary shield during the Second Battle of Bothawui.
Following its theft from the Republic shipyards located at Fondor by Clan Varad, the Allusis became the location of a conflict involving Republic, Sith, and Mandalorian combatants.