Battle of Mon Calamari ( Second Imperial Civil War ) The Battle of Mon Calamari was a major battle between Darth Krayt ' s Galactic Empire and the Galactic Alliance Remnant , which took place during the Second Imperial Civil War in 137 ABY . Background . The world of Mon Calamari was a longtime supporter of the Galactic Federation of Free Alliances , as well as the New Republic and Rebel Alliance that preceded it . In the seven years following the defeat of the Alliance in the Sith – Imperial War , native Mon Calamari provided spare parts , bacta , and recruits to the Galactic Alliance Remnant , under Admiral Gar Stazi . Despite the fact that the Quarren were now in control of the planet and the world was under Imperial occupation , several key Mon Calamari and Quarren saw that more was needed to aid the struggling remnant forces of the Galactic Alliance . Gial Gahan , a former member of the Alliance Triumvirate , helped hatch a plan to capture the new Advanced Star Destroyer " Imperious " , which was undergoing the final stages of construction in the Imperial - controlled Mon Calamari Shipyards . By sabotaging the computer systems that controlled the Shipyards automated defense systems , Gahan allowed the Alliance fleet an opportunity to jump into the system and seize the new Star Destroyer . Stazi however , wary of an Imperial trap , sent only a single Alliance taskforce , with himself in command . Battle . However , former Triumvir Gahan was unaware that Imperial Admiral Dru Valan had planned a trap for Stazi ' s forces . Although he already expected as much , Stazi still attempted to hijack the " Imperious " . Stationing stormtroopers on the new Star Destroyer , Valan ' s forces ambushed Alliance commando units infiltrating the vessel . Once Admiral Stazi ' s forces jumped into the system led by the " Indomitable " , Valan ' s Outer Rim Third Fleet appeared at Calamari , trapping Stazi between his fleet and the planet ' s defense systems . Valan contacted Stazi and told him to surrender or die . Stazi , repeating his choice from Caamas , refused to surrender . But what Valan didn ' t know Stazi had been prepared for his trap all along and had set up one of his own . The Real Trap . Stazi ordered his fleet to open fire on Valan ' s fleet . The sudden barrage from the Alliance fleet took the Imperials by surprise , and was able to inflict some damage to the " Relentless " . Valan ordered a return fire and fire from the automated guns on the shipyards . But the automated guns fired on the Imperial fleet , having been hacked by Monia Gahan . The combined fire - power of the Alliance fleet and the shipyard ' s guns inflicted heavy damage on the ships of Outer Rim Third Fleet . Valan ordered the shipyard ' s defenses to be shut down , but was still confident because he had Stazi trapped . Meanwhile , the stormtroopers that had re - seized the " Imperious " were actually Alliance troops under the command of Hondo Karr . They hijacked the Advanced Star Destroyer and got it to one of the Alliance bases . Valan brushed off the theft of the " Imperious " , saying the Empire could easily recapture it later . Valan ordered his forces to destroy the " Indomitable " , saying Stazi was the key to the entire Alliance rebellion . While the rest of the Alliance fleet evacuated the system , Stazi had his ship take the Imperials ' fire , while the Alliance ' s CF9 Crossfire starfighter s fought the Imperial " Predator " - class fighters . After the rest of the fleet was safe , Stazi ordered the entire crew of the " Indomitable " evacuated save himself , as he planned to ram the " Indomitable " into the shipyards so the Empire couldn ' t use them . However , Stazi was knocked out by Rogue Leader Jhoram Bey and evacuated . Instead , Captain Yorub took command of the " Indomitable " and , despite a desperate barrage of fire from Valan ' s fleet , rammed the ship into the shipyards , destroying a third of them and damaging a quarter . Aftermath . The battle was a major victory for the Alliance . Not only had they escaped with minimal casualities and inflicted damage to the Empire ' s ship building capabilities , but they now possessed a ship that could out - gun the Empire ' s best ships . Following the battle , the Alliance task force gathered at their designated rendezvous point where they assessed the results of of the battle . Stazi promoted Jhoram Bey to Captain Yorub ' s position as his second in command . He also told Jhoram that they needed to ready the fleet for further action , as the Sith would seek retribution for the theft of the " Imperious " . Meanwhile , aboard the " Relentless " , a shocked Admiral Valan left the task of writing a report to Darth Azard , the Sith Lord overseeing the Third Fleet , to his aide , Captain Hoge telling him to report whatever he desired . Having failed to defeat Stazi once again , he retired to his quarters , contemplating suicide . Darth Krayt , already furious that Cade Skywalker had escaped from his clutches , traveled to Dac with an entourage of Sith Lords to unleash his wrath upon the Mon Calamari , exterminating one - tenth of them and ordering the rest to be placed in work camps , for their assistance to Gar Stazi . The first to be executed were the members of the Mon Calamari Council . Unbeknownst to both the Alliance and the Sith Empire , agents of Fel ' s Empire had sabotaged the " Imperious " . Three sets of explosives ( one deliberately hidden poorly , the others more carefully concealed ) had been rigged to destroyed the ship as soon as its weapons were brought online , which was expected to occur far enough from the shipyards that the Mon Calamari would not be blamed . As the Alliance was still considered a potential ally by Emperor Fel , Imperial Knight s Treis Sinde and Sigel Dare rescued Monia Gahan and , at Gahan ' s insistence , numerous other downed Alliance personnel so that they could reach the Alliance fleet and warn Stazi . Master Sinde remained behind to fight off Darth Azard , allowing the rest to escape . After Sinde escaped from Azard , he made contact with a Mon Calamari resistance cell to continue the fight against the Sith Empire . Behind the scenes . The Battle of Mon Calamari seems to be modelled after the in 1942 during the . During the raid , British forces successfully destroyed the dry docks at the German - occupied French port of St Nazaire ; denying Nazi Germany ' s usage of the docks for prolonged naval operations in the . Likewise , the Sith ' s genocidal campaign against the Mon Calamari seems to be based on which called for the summary executions of captured Allied commandos .