Genocide on Dac The Genocide on Dac was an effort initiated by Darth Krayt , ruler of the Galactic Empire and Dark Lord of the Sith , to eliminate every single member of the Mon Calamari species as punishment for their aid to the Galactic Alliance Remnant during the Second Imperial Civil War . History . Prelude . When Darth Krayt seized control of the Imperial throne , he immediately set his servants about to purge the Galaxy of his enemies . One of the most prominent enemies was the Galactic Alliance Remnant , led by Admiral Gar Stazi . Darth Azard was the Sith who was assigned to oversee the Remnant ' s defeat . He assigned Admiral Sha Dun of the Outer Rim Third Fleet to do so , and later Admiral Dru Valan when Dun was executed for his failure . Valan laid out a trap for Stazi : he would lure Stazi and his fleet to the planet Dac where a new Star Destroyer was being constructed , the warship being the bait . However , the battle that happened was a disaster for the Empire : the Imperial fleet was decimated , the new warship was stolen , and the Remnant escaped with incredibly minute casualties . Genocide . Following the defeat of the Imperial fleet , Darth Krayt personally traveled to Coral City , Dac ' s capital , and summoned the Mon Calamari Council before him . He announced that he had had enough of the Mon Calamari ' s support of Stazi and the Alliance , and decreed that their entire species would be punished , with ten percent being executed immediately while the rest would be placed on forced labor camps until every single Mon Calamari died . Immediately , Emperor Krayt ' s loyal stormtroopers and Sith Lords began to attack every Mon Calamari on sight , and killed those Quarren that opposed them as well . After Darth Krayt left the planet , Darth Azard , a Quarren Sith , was left to oversee the genocide with the aid of Vul Isen , a Force - sensitive Givin scientist also serving the Sith . By the time the genocide was displayed across HoloNet , ten percent of the Mon Calamari on Dac had been murdered . While thousands of Mon Calamari were sent to extermination camps , where they were left without food or medical aid so they would die of disease and starvation , others fled to the deep oceans of Dac , where they were hunted down by the Imperial Army . However , the Mon Calamari Rangers rose to fight against the Imperial onslaught with the aid of Master Treis Sinde , a veteran Imperial Knight . Meanwhile , the Sith unleashed their latest creation , a Sea Leviathan , to enforce Emperor Krayt ' s edict . However , despite its destructive power , being capable of massacring an entire camp in a matter of minutes , the Leviathan was eliminated thanks to the efforts of Master Sinde and the Rangers . The Galactic Alliance ' s Rogue Squadron staged a mission to rescue a group of Mon Calamari refugees by using cargo carriers to evacuate them . When bounty hunters working for the Sith tried to track the refugees to Stazi , the Rogues managed to lead them in the wrong direction by defending the wrong cargo carrier . The Final Protocol . A short time after the death of Darth Krayt , Lord Wyyrlok , Voice of the One Sith and the new ruler of the Empire ordered Vul Isen to execute the Final Protocol , and poison the waters of Dac to wipe out all life on the planet so Imperial forces could be deployed elsewhere . Lord Wyyrlok paid little interest to Lord Azard ' s reminder of the Quarren collaboration and the neutrality of individuals of other species , ordering that they would be allowed to escape the planet but would receive no aid . Isen released viral spores which , carried throughout the planet by oceanic currents , would eliminate all life in a single week . Three days after Wyyrlok ' s edict , Rogue Squadron executed a recon mission on the planet and were shocked to discover a section of the ocean covered by a mass formed by millions of bodies of dead Mon Calamari and Whaladon s . They immediately set out to inform Admiral Gar Stazi , though Andurgo broke formation and began to fire on incoming Predator fighters . When Stazi heard of this , he chose to save the Mon Calamari . His fleet returned to Dac and , after fighting off both waves of Sith - Imperials that came after him , managed to rescue a portion of the planet ' s population . Although it numbered in the millions , it was only a small portion of the planet ' s 27 billion inhabitants . Impact on galaxy . Krayt intended to accomplish two objectives with the genocide : punish the Mon Calamari and dissuade further opposition to his empire . However , while it did force some systems into submission , many other planets and systems were outraged . These systems " allowed " ships from their planetary fleets to join the Galactic Alliance Remnant , while many Mon Calamari that were off world at the time joined the Remnant . These increased Stazi ' s forces substantially . The poisoning of Dac , which claimed billions of lives , also inspired more people to fight against the Sith Empire as well as destroying the diplomatic relations with the empire and its neighbors , the Chiss Ascendancy and the Hapes Consortium ( who refused to even speak with Sith - Imperial representatives after the poisoning was announced ) . The subsequent devastation of Da Soocha and Napdu also led the Hutts to join the efforts against the Empire .