During the Battle of Bakura, Rebel Alliance fighters are shown engaging the Ssi-ruuvi Fleet. The Ssi-ruuvi Fleet represented a substantial collection of warships utilized by the Ssi-ruuvi Imperium for the purpose of planetary conquest. A key feature of these vessels was their reliance on energy derived from a process known as entechment to power their systems. As a result, the majority of ships were equipped with their own dedicated entechment rigs.
The Ssi-ruu commanded a space-faring military force, possessing starships with capabilities comparable to those deployed by the Empire. The fleet dispatched to Bakura was merely an advance scouting detachment; the actual size of the main fleet remained undetermined, though it was confirmed to include a number of Shree-class battle cruisers. It was also speculated that the fleet contained a significant quantity of light cruisers and planetary assault cruisers. While Ssi-ruuk employed several "classes" of starships, a greater degree of variation existed between individual ships within a class compared to the Imperial Navy, as they demonstrated a greater willingness to implement modifications tailored to a vessel's anticipated operational role.
Serving as command ships, the Shree-class battlecruisers, measuring 900 meters in length, were the largest vessels within the fleet. These ships typically led formations comprised of the 750-meter long Sh'ner-class planetary assault carriers and the 400-meter long Wurrif-class light cruisers. Both the Shree-class and Wurrif-class warships were capable of carrying hundreds of starfighters (Swarm-class battle droids). Supporting the larger capital ships were the smaller Fw'Sen-class picket ships, measuring between 45 and 50 meters. Positioned further back from the immediate combat zone, the 624-meter long Lwhekk-class manufacturing ships were responsible for producing war material to supply the fleet.