Dac Dac , as it was called in Mon Calamarian , Quarrenese , and Basic , also known as Mon Calamari and sometimes simply called Calamari or Mon Cala , was a planet in the Calamari system of the Calamari sector , located in the Outer Rim . It was home to a wealth of sentient species : the Mon Calamari , the Quarren , the Moappa , the Amphi - Hydrus , and the Whaladon s . " Mon Calamari " was the name given to the planet by Human explorers from the Galactic Republic who first discovered and revealed the world to the rest of the galaxy . The native species referred to the planet as " Dac " . The planet was a shining bluish - white orb from space , due to its ocean - covered surface . It was home to 27 . 5 billion Mon Calamarians and Quarren , as well as surrounded by the impressive Mon Calamari Shipyards . In 137 ABY , all life on the planet was wiped out in accordance with the Final Protocol ordered by Darth Wyyrlok of the One Sith with the use of Viral spore s to punish the Mon Calamari for rendering aid to the remnants of the Galactic Alliance . Nearly 20 % of the planet ' s population was saved during the Evacuation of Dac . Description . An aquatic planet in the Outer Rim Territories , Mon Calamari had a bluish - white color . Some cities on the planet , such as New Coral City , were built on the surface of the ocean . The Mon Calamari and Quarren both lived on the world and were often at odds as a result . The Mon Calamari Shipyards were a very important part of the economy . History . Early millennia . The Mon Calamari lived comfortably on the surface and below while the Quarren lived in the depths of the oceans . The massive Whaladon s meddled little in governmental affairs , swimming in their pods and protected from hunting by law . In 4500 BBY , the Quarren made war on the Mon Calamari , but the Mon Calamari won the war , resulting in the near - extinction of the Quarren . The Mon Calamari raised the next generation of Quarren themselves , teaching them Mon Calamari values . The planet was discovered in 4166 BBY , by that time its inhabitants had already been exploring nearby star systems for several years . C . 529 BBY , a number of needy Mon Calamari and Quarren locals were approached by recruiters sent by Hugo Bartyn . Bartyn wanted amphibian fishermen to settle a new city in Lamaredd and tempted these poverty - stricken individuals with promises of untouched seas in a new frontier . Once they arrived , however , they became slave laborers . Choppy waters . The planet was represented in the Galactic Senate by the corrupt Tikkes , who allowed Thalassian slavers to operate in the Calamari sector for a share of their profits . He was exposed in 22 BBY . He escaped Republic custody on Coruscant and fled to Geonosis , where he became a member of the Separatist Council as leader of the Free Dac movement , which sought to cut ties between Mon Calamari and the Republic . During the Clone Wars , the world was attacked twice by the Confederacy of Independent Systems . First , Count Dooku devastated the world with the Dark Reaper . Later , Tikkes ' s Quarren Isolation League attempted to overthrow the Mon Calamari Council . Tikkes ' s actions led to a conflict between the two native peoples , but the League was defeated by Kit Fisto and the Mon Calamari Knights . It was discovered by Kit Fisto that the League was allied with the Moappa , whom Kit discovered were also sentient . Kit informed the Mon Calamari that they needed to make peace with and respect the sapience of the Moappa . Many members of the Quarren Isolation League and the Free Dac movement fled Mon Calamari , settling on the CIS worlds of Pammant and Minntooine , where the Free Dac Volunteers Engineering Corps created shipyards . Using designs based on Mon Calamari Shipyards blueprints stolen by the CIS as a basis , these yards created " Recusant " - class light destroyers at Minntooine and " Providence " - class carrier / destroyers at the Pammant Docks for the Separatist fleet . There were also Separatist Mon Calamari , led by the heroic Commander Merai , backed by Passel Argente and the Corporate Alliance . Without the approval of Count Dooku , the Mon Calamari led an effective assault during the First Battle of Kamino , using their amphibious fighter s and Merai ' s personal assault ship , the " Shark " . Ultimately their assault failed , as Dooku betrayed them . Most of the Mon Calamari forces were able to escape the disaster due to the sacrifice of Merai , a true hero to the end . After the Republic loyalty of the planet was cemented , the Loyalist inhabitants agreed to a new arrangement : dual representation in the Senate , with Tundra Dowmeia representing the Quarren and Meena Tills representing the Mon Calamari . Meena Tills was held hostage on Coruscant by Korun nai terrorists , but rescued by Republic Commandos . Both Senators were signatories of the Delegation of 2000 ' s petition , resulting in their arrest upon the Declaration of a New Order . Imperial era . The planet was represented in the Imperial Senate by Timi Rotramel until it was harshly subjugated by the Galactic Empire , which saw the people of Mon Calamari as natural slaves whose industries and resources could be used to power the Imperial war machine in the Outer Rim Territories . The Imperial propaganda machine cited the signing of the Petition of 2000 by the planet ' s previous disloyal senatorial representatives as an excuse for the repression of the Mon Calamari . The Imperials were aided during the occupation by the sabotage of the planetary shields by Quarren saboteurs such as Seggor Tels , swiftly conquering the planet . During the Imperial occupation of the planet and its system , the Mon Calamari started a resistance movement , which was unsuccessful at first . Eventually , Emperor Palpatine ordered three of the planet ' s floating cities to be destroyed in reprisal . Regardless , the Imperial attack did not succeed in breaking the Mon Calamari spirit . Instead of extinguishing the resistance , it pushed the world ' s natives into open rebellion when the Mon Calamari joined the Quarren against the invaders into a grand and secret military effort which finally repelled the Imperials and pushed them off their planet , their system and indeed the entire sector . Shortly after the uprising , while preparing the planet to join efforts with the Rebel Alliance , the Imperial Senator Timi Rotramel himself attempted to bring other species and systems into the Rebellion against the Empire ; unfortunately for Rotramel , shortly after failing to convince the Tiss ' shar to join a Sector rebellion , he was killed on Tiss ' shar by Darth Vader , who discovered his secret rendezvous with Tiss ' shar President Si - Di - Ri . The Imperial propaganda did not wait to attempt to discredit the Mon Calamari , as the Imperial sentientologist Obo Rin , working under the direction of Lord Vader , wrote the " Catalog of Intelligent Life in the Galaxy " . This work included falsified claims that the first contact between the Mon Calamari and galactic civilization occurred during the reign of the Galactic Empire . This was accepted as truth by many citizens of the Empire , further angering the Mon Calamari . After Mon Calamari ' s revolution against the Empire , the Mon Calamari and the Quarren joined with the Rebel Alliance , proving to be an invaluable asset in the Galactic Civil War . The Mon Calamari , masters of starship construction , supplied the Alliance with badly needed capital ships constructed at the Mon Calamari Shipyards . Prior to joining the Alliance , the Mon Calamari had only built passenger liners and deep space exploration vessels because of their peaceful ethos , but by heavily retrofitting these vessels , they were able to create warships that could take on the Empire ' s mighty ships of the line . The Mon Calamari disrupted and mined known routes that led to their sector , while searching for new secret routes . In order to retake Dac the Empire would have to launch a long campaign that might embolden other rebel planets . Therefore the Imperial attack was postponed . During this time of war , the Mon Calamari and Quarren of Dac lived under the constant threat of an attack by Imperial fleets . The Alliance maintained a strong presence in the star system , including enough capital ships to defend against a standard Imperial battle line or perhaps even a squadron , but the Alliance and the Mon Calamari didn ' t have enough firepower in the system to repel a full Imperial attack squadron . The main Alliance fleet was considered too precious to risk in such a dangerously exposed position . . As early as 1 ABY Imperial Intelligence Operations sent operatives to the planet in preparation for Imperial strikes on the planet ' s floating cities . While the Alliance Fleet was fighting over Endor , massive imperial fleets moved to siege Mon Calamari Space . The Death Star would destroy Dac once completed , but Emperor Palpatine died before the Empire could put its plans into action . Imperial commanders turned into independent warlords after the Battle of Endor and fortunatelly Moff Kaine withdraw to another side of the Galaxy instead of attacking Dac . By the time of the Battle of Endor , Mon Calamari Star Cruiser s were extensively used by the Alliance , playing a major role in the hands of Mon Calamari Admiral Gial Ackbar , who put them to good use in that decisive battle . Anchor of the New Republic . Mon Calamari was a founding member of both the Alliance of Free Planets and the New Republic . Ackbar represented the planet on the New Republic Provisional Council . The New Republic defeated further Imperial invasions thrice at Mon Calamari : the first time against the Whaladon hunting submarines of Emperor Trioculus ' s Imperial faction ; the second against the World Devastator s of the clone Emperor ' s Dark Empire ; and the third against the Star Destroyers of Admiral Daala ' s Maw fleet . These three battles caused many cities to be destroyed and members of all the indigenous sentient species suffered loss of life . During the battle against Daala , Leia Organa Solo discovered that the Mon Calamari Ambassador Cilghal , Ackbar ' s niece , was Force - sensitive . Cilghal was the first Mon Calamari to join the New Jedi Order . The planet was later represented in the New Republic Senate by Q - Varx , who was revealed as a traitor and replaced by Cilghal . Birth of the Galactic Alliance . During the Yuuzhan Vong War , the planet was represented by both the Quarren Pwoe and the Mon Calamari Gron Marrab . After the fall of Coruscant to the Yuuzhan Vong in 27 ABY , the remaining senators and politicians of the new Republic government fled to Mon Calamari , which had not been taken by the Yuuzhan Vong . The world ' s massive shipyards , large defensive fleet , and isolation from the front lines made it a desirable location . Pwoe tried and failed to usurp the New Republic presidency and eventually joined the Ylesian Republic on Ylesia . Marrab , however , remained loyal , and represented his homeworld in the Senate . Following the election of Cal Omas as the new Chief of State , the New Republic was reorganized into the Galactic Federation of Free Alliances , or Galactic Alliance in 28 ABY . The Alliance was formed on Mon Calamari , which served as its original capital until the end of the Yuuzhan Vong War . Second Imperial Civil War . After the Sith – Imperial War , the planet was once again under Imperial control . Under the rule of usurper Emperor and Dark Lord of the Sith Darth Krayt , the Quarren were placed in charge of the planet , as the new Sith Order held a number of Quarren amongst its members , most notably Darth Azard and the late Darth Maleval . In an attempt to destroy Gar Stazi and the Galactic Alliance Remnant , who the Calamari supported in secret , Admiral Dru Valan laid a trap at Mon Calamari by leaking information about the " Imperious " , a new type of Star Destroyer that was under construction at the Mon Calamari Shipyards . The resulting battle resulted in the destruction of more than half of the Shipyards . Krayt was angered by the theft of the " Imperious " , and decided to take his anger out on the Mon Calamari people . He traveled to Dac , and during an address to the Mon Calamari Council , he ordered the immediate execution of one - tenth of their population . After initiating the massacre by having the members of the Council itself killed , Krayt commanded that the remainder of the Mon Calamari population be rounded up and incarcerated in work camps ; those Mon Calamari who tried to escape this fate were to be pursued and killed . Krayt ' s ultimate goal in this matter was to render the Mon Calamari extinct and to " purge the galaxy of their culture and history " as a warning to anyone else who had notions of defying his empire . Following the initial death of Darth Krayt , Krayt ' s regent , Darth Wyyrlok , fully took control of the One Sith . No longer desiring to waste Imperial resources on the planet or in long and costly campaigns , Wyyrlok issued an edict calling for the immediate termination of the genocide . The ocean ' s water was then poisoned by Sith scientist Vul Isen in an attempt to wipe out all life on the planet . However , Admiral Gar Stazi refused to abandon the native Mon Calamari and other innocent inhabitants without an evacuation attempt . Stazi led the Galactic Alliance Core Fleet to Dac , reinforced by an elite squadron of Jedi to the dying planet . A taskforce under Jedi Master Drok succeeded in sabotaging the defenses of the Mon Calamari Shipyards , and Jedi Master Asaak Dan led a group of Mon Calamari Rangers in securing Heurkea Floating City to serve as the base of operations for the evacuation . Capturing additional ships in the Shipyards , the Alliance easily overwhelmed remaining Sith forces . With the planet under control , a massive fleet of private ships from all across the galaxy exited hyperspace , and began the rescue operation . With the Galactic Alliance fleet engaged in rescue operation , the Sith sprung their trap . The Outer Rim Third Fleet , under the command of Admiral Krion Grail and supervised by Moff Geist and Fist Darth Stryfe , emerged from hyperspace behind the Alliance fleet . Focusing on protecting the evacuation fleet , the Alliance fleet suffered heavy damage . As all seemed lost , however , a number of Star Destroyers belonging to Roan Fel ' s Empire - in - exile appeared , surrounding the Imperial fleet . Now trapped themselves , Stryfe and Geist ordered a retreat , leaving Dac safe for evacuation . Unfortunately , it was already too late for most of the planet ' s population . The combined Alliance , Imperial , and civilian fleet was only able to save around twenty percent of Dac ' s Mon Calamari , Quarren , Whaladons , and Moappa . While numbering in the billions , it was only a small percentage of the world ' s total population of 27 billion , and does not include the even greater amount of creatures and other unique life forever lost beneath the waves . Galactic Triumvirate . Following the defeat of the One Sith , the Sith were driven underground again and a Galactic Federation Triumvirate , consisting of the Fel Empire , the Jedi Order , and the Galactic Alliance , assumed power in Coruscant . In 138 ABY , a large number of Quarren and Mon Calamari were lured back to Dac under the pretext that the planet was being " renewed " . Instead , these unfortunate Quarren and Mon Calamari were enslaved by a pirate syndicate led by the rogue Sith Darth Luft , who forced them to build a fleet of ships in the remnants of the Mon Calamari Shipyards . Darth Luft and his pirates also kept their children and elderly relatives hostage . The Quarren and Mon Calamari ship builders were also beaten and mistreated by their pirate captors . One Quarren named Tikin befriend a Mon Calamari environmental engineer named Luen . These two encountered the Imperial Knight Jao Assam and the junk dealer Ania Solo , who learnt about their predicament and quickly transmitted word of the pirates and their slaving operation to the Triumvirate authorities in Coruscant . Later , Tikin was murdered by Darth Luft and his death triggered a slave uprising by the Quarren and Mon Calamari , who joined forces to rebel against the pirates . This uprising coincided with an attack by the Galactic Triumvirate led by Admiral Stazi and the Imperial Knight Yalta Val , who liberated the slaves and apprehended the pirates . Darth Luft himself was killed during a duel by Jao Assam . The Quarren and Mon Calamari then settled in the space station , which had been flooded with water by Admiral Stazi , to provide a comfortable atmosphere for the former slaves . As a gesture of reconciliation between the Quarren and Mon Calamari , Tikin ' s son Tilin was raised by Aunt Luen . Behind the scenes . This planet has been referred to by at least four different names throughout the Expanded Universe : A 1982 issue of " Bantha Tracks " provided a preview of the Mon Calamari and named their home planet Dac ( Notice that this was in 1982 , before the Mon Calamari and Quarren made their first canonical appearance in " " ) . Later EU sources , such as " Dark Empire " and " " , refer to the planet as " Calamari . " However , in following years , most EU sources began to call the planet " Mon Calamari . " To add to the confusion , the novel " Assault at Selonia " refers to it as " Mons Calamari . " In the of the , the planet is referred to as " Mon Cala . " Despite its appearance in early sources , canonicity of the name " Dac " was initially disputed . The roleplaying game supplement " Geonosis and the Outer Rim Worlds " brought Dac back into canon , noting that Dac was the name used by the natives in their own language for the world ; some newer EU material has begun to refer to the planet by this name , where appropriate . Additionally , other recent EU literature has adopted the name " Dac " when referring to Quarren CIS members . The PC game " " mistakenly places Mon Calamari in the Sluis sector of the Galactic Core . The Sluis sector is actually located in the Outer Rim . Additionally , the in - game encyclopedia entry for the planet incorrectly states that Mon Calamari had only one moon , and is one of the sources that states that the planet was first discovered by the Empire .