Mon Calamari Shipyards / Legends The Mon Calamari Shipyards were a Dac - based manufacturer of numerous space transports and warships . Over four thousand years old by the time of the Galactic Civil War , the shipyards were renowned for their elegant , streamlined ship designs , characterised by bespoke production , unique engineering , and a sculpted , organic hullform . Though originally focused on exploration vessels and luxury liners , Mon Calamari designs emphasised powerful defenses . When the Mon Calamari joined the Alliance to Restore the Republic , the shipyards became the main source of new warship construction for the Alliance , as well as the New Republic and later the Galactic Alliance . During the Galactic Civil War , the Mon Calamari shipyards became known for their advanced and powerful capital warships , ranging from standard cruisers to massive battleships and Star Defender s . History . Early years . The shipyards of Mon Calamari came into being over four thousand years before the Battle of Yavin , when the people of Dac began to dream about what lay beyond their own world . The two sentient species of the oceanic world , the Mon Calamari and the Quarren , together constructed several orbital facilities , which were used to study techniques ranging from zero - gravity manufacturing to starship propulsion . Thus began the first construction of starliners which explored first the Calamari system and later surrounding worlds , including Ruisto and Mantan , which were eventually colonized . The Quarren also established asteroid mining colonies to supply Mon Calamari with additional resources . In time , Dac became encircled with shipyards and construction facilities , as well as some secret facilities hidden underwater on the planet ' s surface . These would prove useful millennia later when the Galactic Empire invaded the planet . Republic contact . It was starliners from Mon Calamari that first stumbled across Galactic Republic exploration vessels . These starliners were originally built as exploration vessels for deep voyages into Mon Calamari Space , but carried military - grade deflector shields and starfighter wings . Mon Calamari cruisers became the main defense force for a colonial empire spanning several hundred systems in the north - east Outer Rim . Despite the level of advanced technology that they discovered , Republic explorers did not fully grasp the ability of the world ' s shipyards . Mon Calamari designs were seldom seen outside the Calamari sector , though this changed towards the end of the Republic , when they came to the attention of Count Dooku . Into the Clone Wars . Towards the end of the Republic , Mon Calamari became a key affiliate of Rendili StarDrive , producing variants of the " Dreadnaught " - class heavy cruiser alongside their native vessels . As the Separatist movement grew , CIS leader Count Dooku visited Dac . Upon seeing the vessels that they were able to build , Dooku judged the shipyards as being as advanced and sophisticated as the great yards of Fondor or Gyndine . Yet , when Dooku tried to recruit Dac and its advanced shipyards to join his growing movement , they resisted . Angered , Dooku unleashed the Dark Reaper weapon on the world in 22 BBY , which severely damaged its shipyards . Further damage was sustained during an early battle of the Clone Wars that same year , which pitted loyalist Mon Calamari and Republic clone troopers against the CIS backed Quarren Isolation League . While the Mon Cals and their Republic allies prevailed , shipbuilding was further delayed when CIS agents stole warship plans . Although the vast majority of Mon Calamarians supported Palpatine , there were several pro - Separatist members who attempted to liberate the shipyards . Exiled shipwrights formed the Free Dac Volunteers Engineering Corps , based on the Mon Calamari colony of Pammant , and revised the Rendili Dreadnaught into the Confederate Navy ' s " Providence " - class carrier / destroyer . Imperial Era . The rise of the Galactic Empire brought enslavement and subjugation to Dac , led by Moff Wilhuff Tarkin . The shipyards became a valuable prize for the Empire , which wanted them for maintaining control over the neighboring Tion worlds and the outlying planets of the Perlemian Trade Route . Likewise , Tarkin attempted to retool the shipyards for Imperial use . This dream never fully materialized , as Imperial engineers struggled to adapt Mon Calamari tools and equipment . This was an impossible task , as everything from smelting techniques to arcfusers were designed for Mon Cal and Quarren physiology . After a few failed experiments in using the yards to build warships for the Empire , the project was scrapped when the Imperial High Command deemed it too expensive . The shipyards sat idle as the Mon Calamari quietly plotted to restore their freedom . Despite this , Tarkin , because of his admiration of the elegant winged hullforms of the new MC80 cruisers , allowed the Mon Calamari to build variants of the vessels as luxury starliners for Galaxy Tours and Kaliida & Rimward . The Mon Cal shipwrights later repaid him by developing every component of these new liners as a prototype for future warships : the sport lasers on the Recreation Deck of the " Kuari Princess " were equipped with pinpoint targeting computers , while the RNS " Queen Amidala IV " boasted an innovative Class One hyperdrive . These were only small parts of a broader , secret plan for re - armament and liberation . Arsenal of the Rebel Alliance . Once the Mon Calamari managed to overthrow their Imperial oppressors , the shipyards began to modify their massive starliners into combat - capable warships . Their victory became a beacon of hope to other planets , and Rebel warships moved into the Calamari Sector to aid in its defense . With help from their new Rebel allies , the Mon Calamari began to build more powerful cruisers . When the Mon Calamari voted to become open members of the Alliance , Rebel technicians were dispatched to learn from and aid the Mon Cals in constructing warships for the Rebel fleet . While the shipyards specialized in their own Star Cruisers , they were adapted to produce corvettes and frigates as well . It was said that a single yard could produce one frigate or corvette a month , while the larger Star Cruisers could each be turned out in six months . The total ship production in the sector grew at a staggering pace . The MC80 " Home One " type Star Cruiser and MC80 " Liberty " type Star Cruiser went on to become the mainstays of the Alliance navy , with ships serving with distinction in numerous battles , including the climactic Battle of Endor . By the time of the Battle of Endor , the Mon Calamari Shipyards had produced eight new heavy cruisers based on the " Kuari Princess " design , and nearly 50 escorts — which was even more impressive of an achievement considering a good chunk of the shipyard ' s resources were used for starfighter construction at the same time . Mainstay of the New Republic . As the Rebel Alliance transitioned into the New Republic , the Mon Calamari Shipyards remained a major builder of warships . New classes of Star Cruisers , like the MC80B Star Cruiser and later the MC90 Star Cruiser filled the ranks of the New Republic Defense Force . This made the yards a high profile target , which happened on two occasions . The shipyards suffered damage during the attacks of the Empire ' s fearsome World Devastator s , as well as some minor damage a year later during an attack by Imperial Admiral Daala . Still , these setbacks did not deter the Mon Calamari shipyards . They were repaired and expanded . As the galaxy began to change following peace with the Empire , the Mon Calamari continued to produce state of the art capital warships for the New Republic , including the powerful " Mediator " - class battle cruiser and " Viscount " - class Star Defender . Yuuzhan Vong Invasion . The shipyards were a key resource for the New Republic during the Yuuzhan Vong War . The yards continued to produce powerful battle cruisers and Star Defenders as the New Republic military beefed up in response to the invasion . Even after being cut off from the rest of the New Republic when the Yuuzhan Vong pierced the Perlemian Trade Route , the shipyards kept up production , sending new units to the front lines via secret hyperspace routes . Following the Battle of Coruscant , the yards became a even more vital asset as the government relocated to the water world . As the New Republic began to reorganize into the Galactic Alliance , the shipyards worked at a feverish pace to replenish and replace losses sustained earlier in the war . With most of the major shipbuilding worlds of the galaxy under Yuuzhan Vong control , the Mon Calamari shipyards were the most important manufacturing asset to the New Republic . At the end of the war , the Mon Calamari and their shipyards were hailed as a symbol of idealism and determination in the face of danger . Under the Galactic Alliance . With so many other major shipyards , like Kuat Drive Yards , the yards of Bilbringi , and Fondor devastated by invasion , the Mon Calamari shipyards undoubtedly benefited from surviving the war intact . By the time of the Second Galactic Civil War , the Mon Calamari shipyards had produced the new Mon Calamari heavy carrier for the Galactic Alliance . One of this class , the " Blue Diver " , was assigned to the Second Fleet during the Battle of Tralus . In the last years of the Galactic Alliance , the shipyards produced various warship classes for the Alliance military , including the MC140 " Scythe " - class main battle cruiser , " Tri - Scythe " - class frigate , and " ShaShore " - class frigate . Second Imperial Civil War and beyond . By 137 ABY , the Mon Calamari system and its shipyards had fallen to the new Galactic Empire , and they were forced to make Imperial warships . One of their largest constructions was the " Imperious " - class Star Destroyer " Imperious " , which was used by the Empire to lure the Galactic Alliance Remnant into a trap . But the trap was really set for the Empire . While the Alliance Fleet and the shipyard ' s guns ( which had been hacked by a member of Rogue Squadron ) devastated the task force of the Outer Rim Third Fleet , the stormtroopers that had re - seized the " Imperious " were actually Alliance troops , under the command of the ex - stormtrooper Hondo Karr . The ship was stolen and was successfully delivered to one of the Remnant ' s bases . There , the Galactic Alliance Remnant began the process of bringing its weapon systems online . The shipyards , meanwhile , were devastated during the battle , when Jaius Yorub rammed the " Indomitable " into them , destroying a third of the yards and damaging another quarter . Following the defeat of the One Sith , 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 . However , the Quarren Tikin and the Mon Calamari Luen 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 .