Nharwaak The Nharwaak were a sentient species that , along with the Habeen , populated the Outer Rim world of Mylok IV in the Mylok system . The Nharwaak were heavily dependent on Corellian Engineering Corporation CR90 corvettes to form the backbone of their capital ship fleet . They also used older starfighters , such as the Y - wing . Hyperdrive innovation . Together , scientists from these two species worked together to develop a radical new hyperdrive design that was compact and cost - effective enough to be feasibly incorporated into mass - produced TIE starfighters ( as opposed to the prototype TIE Advanced x1 design flown by Darth Vader during the Battle of Yavin ) . Starfighter hyperdrives had been a thorny problem for engineers since well before the Galactic Civil War . Indeed , before the Clone Wars even Jedi starfighters were typically lacking internal hyperdrives and used a Hyperdrive docking ring for interstellar travel . As such , the joint Habeen / Nharwaak hyperdrive technology was a critical technological development that would have far - reaching implications for both the Galactic Empire and the opposing force of the Alliance to Restore the Republic . In supplying customers , whether through fear or loyalty , the Habeen chose to serve the Empire , in the form of Grand Admiral Zaarin . The Nharwaak , on the other hand , perhaps out of idealism , decided to provide the hyperdrive to the Rebellion . Convoy attack . Shortly after the Battle of Hoth , when the Habeen began the transfer of the new technology to Zaarin ' s forces aboard the Nebulon - B2 frigate " Shamus " , the Nharwaak attacked the rendezvous using a pair of CR90 corvettes , the " Charger 1 " and " Charger 2 " , and a number of Y - wings and Z - 95 Headhunters . This attack was unsuccessful and the convoy survived , in part due to the piloting skills of future Emperor ' s Hand , Maarek Stele , who would play an important part in thwarting the further aims of the Nharwaak . Imperial counterstrike . The Imperial retaliation was swift . With the discovery of a secret Nharwaak base hidden among a cache of Xizor Cargo Containers lightly defended by Y - wings , Admiral Zaarin was able to mount a TIE / sa bomber attack from the Modified Frigate " Shamus " . The destruction of the workshop was a setback that severely crippled the Nharwaak scientists ' ability to conduct research and development . The attack also destroyed a number of CR90 corvettes , " Petor " group and " Shotgun " group , that were carrying missiles and torpedoes , further denting the Nharwaak ' s offensive capabilities . Attack on the Habeen . Following the destruction of the hidden base , the Nharwaak set about retaliating by annihilating a Habeen tech center near Mylok IV . Unable to send the " Shamus " in time , Zaarin dispatched the " Assassin " - class corvette " Phoenix " with TIE Bombers and TIE Interceptors to defend the Habeen installation . Although intent on inflicting heavy damage , the Nharwaak were eventually driven off by the heroic efforts of Maarek Stele , while the Habeen work crew and station supplies were successfully evacuated . Diplomatic incident . When the Habeen decided to normalize diplomatic relations with the Empire , the Nharwaak tried to sabotage Zaarin ' s negotiations aboard the " Shamus " by sending Y - wings and the corvettes of " Phazer " group to attack the Habeen Nebulon - B frigate " Lendova " . Again , Maarek Stele ' s genius in a TIE Interceptor saved the day by almost single - handedly turning back the Nharwaak fighters . The diplomatic meeting was a complete success , and the Habeen agreed to turn over the new hyperdrive technology to the Empire . Rebel arms deal . In response to the Habeen ' s deal , the Nharwaak initiated a deal with the Rebels to turn over the same technology . A meeting was arranged between the trio of Nharwaak CR90 corvettes , " Glazer " , " Coffey " , and " Janson " , and the Rebel Nebulon - B Frigate " Xerxes " . Zaarin cunningly allowed this meeting to begin , before interrupting it with a deadly ambush of Assault Gunboats and TIE Bombers from the " Shamus " . The Rebel frigate was obliterated , and with it , the Nharwaak ' s hopes of aiding the Rebellion .