Attack on Mahranee The attack on Mahranee , which occurred in year 19 BBY toward the end of the Clone Wars , resulted in the genocide of all Mahran refugee s who were escaping from their embattled homeworld of Mahranee . When the Confederacy of Independent Systems targeted Mahranee for its plentiful resources , the native Mahran people appealed to the Jedi Order for aid . Jedi General Chubor brought a Galactic Republic task force of clone trooper s to Mahranee , but they were too late to prevent the Confederate forces from laying waste to the planet ' s capital city . Though Chubor ' s detachment tried to escort thousands of Mahran civilians off - world to safety , the Separatists were unwilling to leave any survivors , killing the Mahran refugees alongside the Jedi and clone soldier s . Separatist leader Count Dooku unequivocally blamed the Jedi Order for the massacre , leading the Jedi High Council to finally sanction an operation to assassin ate Dooku as a means of stemming the war ' s casualties . Prelude . In 19 BBY , the final year of the Clone Wars , the Confederacy of Independent Systems set its sights on capturing Mahranee , a member world of the Galactic Republic , whose abundant resources made it a valuable target . As a result , the planet ' s native Mahran inhabitants transmitted a distress call to the Jedi Order , which responded by dispatching a detachment of clone trooper s under the command of Jedi General Chubor to aid the Mahran against the Separatists . The attack . When the Mahranee government refused to capitulate to their demands , the Confederate forces initiated an assault on the planet , turning it into a battlefield . Chubor and his clone soldier s arrived too late to stop the Separatists from obliterating the planet ' s capital city , which was summarily reduced to rubble . Consequently , thousands of Mahran civilians — many of whom were injured — attempted to escape from their homeworld . While some of the refugee s departed aboard their planet ' s vessels , others were ferried off - world aboard Republic craft , such as Chubor ' s Republic frigate , with clone trooper s aiding in the escort operation . Yet the Republic and Separatist forces continued to do battle in orbit of Mahranee , exchanging barrages of laser fire through the vacuum of space , and the Mahran refugee craft were caught in the middle . Desperate to save the refugees , Chubor opened a direct holographic transmission to Count Dooku , the leader of the Confederacy . Chubor pleaded with Dooku to spare the Mahran , stating that his own frigate was filled with civilian families ; moreover , half of the Mahran were only youngling s . However , Dooku was unsympathetic to the plight of the Mahran . Knowing their conversation was being broadcast to the Jedi High Council , Dooku took the opportunity to blame the Jedi Order for the billions of casualties that the war had caused , claiming that such was the price of the Republic ' s resistance to his Confederacy . Chubor ' s frigate was the next ship to fall to Separatist fire , with members of Mahranee ' s prominent blood line of Ashu — including Ashu - Nyamal , the Firstborn of Ashu — being among the deaths . Altogether , it took the Separatists a matter of hours to capture Mahranee and slaughter its thousands of inhabitants , resulting in a victory for their side . Aftermath . Once they had established control of Mahranee , the Confederate forces all but issued a death warrant for any surviving Mahran , claiming that they were extremely hostile and were to be killed on sight . Dooku ' s message to the Jedi Council , meanwhile , was met with dismay and anguish from its recipients . At a subsequent session , the Council decided that the time had come to assassin ate Dooku , an act that Jedi Master Mace Windu and Jedi Knight Anakin Skywalker — the latter of whom had been invited by Master Obi - Wan Kenobi to sit in on the meeting — believed would collapse the Separatist regime and also prevent further bloodshed from occurring . Even Grand Master Yoda agreed to such a plan , acknowledging that Dooku ' s schemes placed too many innocent lives at risk . The maverick Jedi Master Quinlan Vos was assigned the task of killing Dooku with the aid of Asajj Ventress , Dooku ' s jilted apprentice – turned – bounty hunter , who could assist in getting close to the elusive Sith Lord . Ventress still harbored a grudge for her former Master , who previously tried to eliminate her at the behest of his own Sith Master , Darth Sidious . Going undercover as a bounty hunter , Vos found Ventress on the moon Pantora and convinced her to take him on as a partner . Yet they failed to execute Dooku , and it was not until the later Battle of Coruscant that Skywalker finally managed to kill him . Behind the scenes . The attack on Mahranee served as the opening scene of author Christie Golden ' s novel " Dark Disciple " , which was published on July 7 , 2015 . " Dark Disciple " was based upon an eight - part story arc that had been scripted for the seventh season of the ; the series ended before the scripts could be produced as episodes . On one occasion in the novel , the narrative referred to the event as " Dooku ' s devastating attack on Mahranee , " providing the battle with a name .