Yinchorri Uprising The Yinchorri Uprising , also known as the Yinchorri Crisis , represented a series of aggressive actions by the Yinchorri in 33 BBY . After joining the Galactic Republic in 58 BBY , the Yinchorri were quick to embrace the inflow of technology and commerce . A military force was rapidly developed and dreams of conquest inhabited their minds . Provoked by Darth Plagueis and Darth Sidious , with the help of Vilmarh Grahrk , the Yinchorri seized the Golden Nyss Shipyards before invading the nearby moon of Mayvitch 7 . In fact , Plagueis wanted to see if the Yinchorri were worthy to host a secret cloned army for the destruction of the Jedi . The Jedi Order sent a diplomatic mission to investigate the situation , but the two Jedi assigned were murdered . In response , the Order dispatched a larger force consisting of Jedi Masters and Jedi Knights , but were immediately attacked upon arrival in the Yinchorri system . After a series of bloody battles scattered on Yitheeth , Yibikkoror , and their homeworld of Yinchorr , the Jedi were able to pacify the Yinchorri with the aid of the Judicial Forces during the decisive Battle of Uhanayih . Subsequently , Yinchorr was placed under interdict by the Republic . The Sith ' s victory was threefold . First , seven Jedi ( including one member of the Jedi Council ) were killed . Second , the Yinchorri — aggressive , expansionist , armed with cortosis , and immune to mind tricks — would have posed a threat to his plan to rule the galaxy , and he was able to manipulate others to solve the problem for him . Third , Supreme Chancellor Finis Valorum ' s political standing in the Galactic Senate was critically weakened , paving the way for Senator Palpatine ' s own rise . History . Background . The Yinchorri were a fierce reptilian species from the planet Yinchorr in the Expansion Region which were divided into two separate castes — a ruling intelligentsia and a martial class of warriors . Having developed interstellar technology during the last decades of the Galactic Republic , they had settled several worlds and moons in their star system including Yitheeth , Yibikkoror , and Uhanayih . Yinchorri culture was best summarized in the expression " might makes right , " and that anything they were capable of taking and holding by force was rightfully theirs . Around 500 BBY , Yinchorr was first charted by the Galactic Republic . In 58 BBY , the Yinchorri became full members of the Galactic Republic and gained representation in the Galactic Senate . Under the influence of a militaristic and expansionist streak , they began to acquire high - technology items such as hyperdrive - equipped spacecraft , advanced weaponry , and lightsaber - blocking cortosis shields . Around 33 BBY , the Sith Lord Darth Sidious conspired with the Devaronian mercenaries Vilmarh and Holmar to take advantage of these factors for their own goals . Serving as an intermediary between the Sith and the Yinchorri , Vilmarh negotiated with the Yinchorri Council of Elders , including Sothek , Jorek , and Kardek . They agreed to organize a raid on the Golden Nyss Shipyards to obtain war materiel . The latter even offered a marital alliance between Grahrk and his daughter Vooma . Vilmarh succeeded in stoking up fear and hatred of the Jedi Order — the Republic ' s ancient guardians and foes of the Sith . Given their aggressive militarism , Sidious regarded them as a potential threat to his plan of galactic domination . He also sought to weaken the Jedi Order by entangling members of the Order in the conflict ; thus eliminating several Jedi . He also sought to use the outbreak of war to discredit Supreme Chancellor Finis Valorum ' s government , paving the way for his own rise to power . Early successes . In collaboration with the Grahrks and their Sith master , the Council of Elders arranged for a raid on the nearby Golden Nyss Shipyards to acquire a number of attack ships and starfighters for their military blitzkrieg . Vilmarh smuggled in a contingent of Yinchorri troops and was able to fool the shipyard master , Gzin . Having achieved their objectives and destroyed the shipyards , the Yinchorri then launched their main offensive . Using their newly - acquired war fleet , they launched attacks on several surrounding non - Yinchorri worlds including Mayvitch 7 , one of the planet Amador ' s moons in the Chalenor system . This moon was settled by Human colonists from Immalia to defend their mining operations from pirates . The Yinchorri quickly decimated the moon ' s defenses and eliminated all resistance . A Mayvitch soldier managed to contact the Jedi Temple on Coruscant and alert them about the danger of the Yinchorri . However , it only reached the Jedi Temple four standard days later . By then , the Yinchorri had seized the Chalenor system and several key worlds . When news of the events on Mayvitch 7 reached the Galactic Senate , Chancellor Valorum requested that Jedi Master Mace Windu send a Jedi team to the Yinchorr system to investigate . Without discussing it with the Council , Windu sent Jedi Knight Naeshahn and her Padawan , Ebor Taulk . Due to poor intelligence , the pair were unaware of the Yinchorri immunity to mind tricks , their cortosis weaponry , and militaristic aggression . The mission ended in failure and the Jedi were killed with their mutilated bodies being deposited on Valorum ' s Coruscant doorstep . Enter the Jedi . In response , the Jedi Order dispatched a second and larger mission to the Yinchorri system to follow - up reports of Yinchorri aggression against neighboring systems . The Jedi mission consisted of twelve Jedi and was made up of three groups , each assigned with a " Consular " - class cruiser since there were only three habitable worlds in the Yinchorri system . Mace Windu , Saesee Tiin , Qui - Gon Jinn , and his Padawan Obi - Wan Kenobi were assigned with visiting the harsh Yinchorri homeworld of Yinchorr while Adi Gallia , Eeth Koth , Tsui Choi , and Theen Fida were assigned to the ocean world of Yitheeth . Plo Koon , Micah Giiett , Lilit Twoseas , and K ' Kruhk were sent to Yibikkoror , a tiny world with a dense atmosphere . All three groups would search for a rumored Yinchorri command center . Having jumped out of hyperspace in the Yinchorri system , they were immediately attacked by Yinchorri starfighter s . The Jedi were disadvantaged since their cruisers were unarmed . However , during the engagement , Gallia ' s cruiser succeeded in destroying two fighters by tricking a third into destroying them before continuing to Yitheeth . Meanwhile , Windu ' s cruiser had its shields disabled by an enemy fighter . However , they evaded destruction due to the efforts of Tiin , who made a jump into hyperspace past a planet . To their Yinchorri pursuers , it appeared that their target had made a jump into hyperspace through the planet . By the time they found out , it was too late since the cruiser had headed to Yinchorr . However , Giiett ' s cruiser failed to shake off their Yinchorri pursuers . K ' Kruhk then proposed to the other Jedi that they trick the Yinchorri into thinking that they had left the cruiser by releasing all the escape pods and the salon pod . The plan worked perfectly and the Yinchorri fighters went after them , allowing the cruiser to evade them and land at a floating platform on gassy Yibikkoror . The Jedi barely escaped their Yinchorri pursuers , though they all managed to reach their destinations . The home front . In collaboration with the Sith Lords and Vilmarh Grahrk , the Yinchorri made plans to launch an attack on the Jedi Temple on Coruscant with a commando force of warriors . Following the dispatchment of a task force of Jedi to the Yinchorri system to investigate reports of Yinchorri aggression , reports came of their encounter with Yinchorri forces during a briefing of the Jedi Council . However , the messages were confusing and contradictory . Master Yoda also sensed danger was coming through the Force . As a result , the Jedi made preparations including evacuating the younglings from their quarters and being on active alert . Outside the outskirts of the Temple , the Yinchorri were indeed in position and ready for attack . Their actions were being observed by Darth Maul who informed his master Darth Sidious . The Jedi Jude Rozess was on guard duty when she was suddenly attacked by a Yinchorri donning a flutter - pack . Despite being overpowered and strangled by a Yinchorri , she managed to reactivate her lightsaber ; taking him down with her . Back in the Temple , the Yinchorri task force found that all the sleeping quarters were empty . The troops then entered a chamber where they were met by a large group of armed Jedi , including Yoda . In the end , almost all the Yinchorri were killed while only two Jedi died : Jude Rozess and Tieren Nie - Tan . Yoda interrogated the last remaining Yinchorri and asked him the location of the Yinchorri high command . The soldier responded to the Jedi Master by telling him that he did not know since he was only an ordinary soldier . Yoda then turned to converse with Soon Bayts , a Jedi Knight who brought word on the whereabouts of the Jedi in the Yinchorri system . This distraction gave the Yinchorri in the Temple enough time to grab his weapon and attempt to shoot the Jedi . Yoda threw him against a wall , presumably killing him . The Jedi then came to the conclusion that the Yinchorri were misguided rather than bloodthirsty and that the attack may have been the work of an unknown party , rather than the Yinchorri themselves . Behind enemy lines . In the Yinchorri System , the Jedi teams landed at their respective destinations and fanned out to find the hidden Yinchorri command center . Gallia ' s team landed on the ocean moon of Yitheeth . Posing as traders looking to buy a fictitious T - 21 hyper particle exchange chamber , the four Jedi set off for a nearby settlement on a speeder provided with the cruiser . They soon came under attack by a group of Yinchorri under the command of Vilmarh ' s nephew , Olmar Grahrk . However , the Jedi fought back and defeated their Yinchorri attackers . They then took Grahrk captive , who told them that the Yinchorri high command was not on Yitheeth . Gallia then decided to leave for nearby Yibikkoror to aid fellow Masters Koon and Giiett , who were also under attack after their crash landing . Outnumbered , Giiett requested assistance from Gallia ' s team . The Kel Dor Jedi Koon then suggested to his companions that they traverse through the dense atmosphere on the floating platform . Their Yinchorri pursuers followed them and one fell into the dense sea of gas below , presumably killing him . Knowing that they could not rely on Gallia to arrive in time , the Jedi attempted to climb to the top of the platform which was held up by balloons . Having reached the top , they were attacked by more Yinchorri wearing flutter - packs , though the Jedi managed to fight them off until the arrival of Gallia ' s cruiser . The cruiser was too large to land on the platform , which was swarmed with throngs of hostile Yinchorri . Thus , the four Jedi detached a balloon in their attempt to reach the cruiser . All four Jedi gripping the balloon ' s single cable , they floated upward , still under fire from their pursuers . Having reached the ship ' s docking rig , they were greeted by the Zabrak Jedi Master Koth who managed to get them all inside . Before Master Giiett could get inside , he came under attack from more airborne Yinchorri . Giiett then grabbed the balloon and made another jump away from the ship while the cruiser moved downwards to allow him to descend down the docking rig , evading his attackers . Having barely escaped , the Jedi traveled to Yinchorr to assist Windu and Qui - Gon ' s team . Death on Yinchorr . Meanwhile , Mace Windu ' s team landed on arid Yinchorr to search for a rumored Yinchorri high command . Having landed , Qui - Gon and Kenobi went on a scouting mission to search for the command . Instead , they discovered that the Yinchorri were mustering their military . Having barely escaped the Yinchorri , the two Jedi arrived back at the temporary base and informed Windu and Tiin of their findings . Qui - Gon related to them that they had discovered a military staging area for an invasion outside the walls of a city . During the debriefing , their cruiser blew up , signalling that the Yinchorri had found their ship . To calm his companions down , Windu assured them that Adi Gallia and the other Jedi reinforcement would soon arrive . The Jedi were quickly surrounded by a Yinchorri army equipped with flutter - packs and tanks . Luckily for them , the other eight Jedi arrived on the remaining " Consular " - class space cruiser and joined the fight . Five of these reinforcements formed a wedge and fought through the Yinchorri lines , diverting the attacks on Mace Windu ' s team and allowing his team to come to their aid in return , thus attacking the Yinchorri on two fronts . He then ordered his companions to link up with the other five Jedi . On the way , Saesee Tiin confronted an enemy tank and killed the driver with his lightsaber before leaping to safety . Meanwhile , the cruiser came under attack by more Yinchorri forces , including a tank . Amidst a vicious battle with the Yinchorri , the Jedi attempted to get back to their cruiser . During the process , Lilit was wounded while trying to protect her Padawan K ' Kruhk . However , when they reached the cruiser , they found that it had been attacked . All the Yinchorri had been killed along with Padawan Theen Fida . Mace Windu then instructed his fellow Jedi to set their grief aside since they had to succeed in their mission to locate the Yinchorri high command . Lilit would later die of her wounds . He also ordered Saesee Tiin to prepare the cruiser for takeoff and to see if he could get a transmission through to Master Yoda at the Jedi Temple . Having entered the ship , they found that Grahrk had freed himself and was at the controls , attempting to communicate with someone , not realizing that this other person was Darth Sidious . After restraining Grahrk , they were able to transmit their findings to the Jedi Council . Meanwhile on Coruscant , Master Yaddle revealed to the others that she had consulted the holocron of Master Tharence Wo and learned of the existence of a fourth moon in the system . It was little more than a barren rocky world known as Uhanayih , which meant " Within World " in the Yinchorri . Windu then sent another transmission to the Jedi Temple with intelligence that the hidden command center had been located on a lifeless rocky planetoid close to the system ' s star . He told his fellow Jedi to inform Valorum of this information . Back on the battlefield , Micah Giiett was shot in the back by a Yinchorri warrior . Dying , he told his companions to leave him behind , propped against a wrecked tank , and to continue their mission at all costs . As soon as his companions had left , Micah was surrounded by a squad of Yinchorri . He told them to come closer on the pretext of revealing " Jedi secrets " to them . When they did , he told them that the Jedi were not afraid to make a worthy stand before activating his lightsaber and igniting the tank ' s fuel cells , presumably killing them all and dying in the process , with his death being transmitted by the Force and felt by his Jedi companions all over the galaxy . Even Darth Sidious himself felt it in the Force . The Dark Lord then ordered Darth Maul to retrieve Vilmarh Grahrk . Showdown on Uhanayih . Back on Coruscant , Valorum began negotiating for a trade and technological embargo on the system with other senators . Due to the influence of both Sidious ' s dark side powers and political machinations , the deliberations took much longer than either Valorum or the Jedi expected . After calling in every favor Valorum was owed since 38 BBY and making concessions to a group of leading senators ( including Tikkes , Onaconda Farr , and Yarua ) , Valorum managed to get the Senate to vote to approve the sanctions . He also mustered enough support to dispatch four Judicial Forces attack groups to the Yinchorr system to aid the Jedi and end the uprising . Meanwhile , the surviving Jedi disembarked Yinchorr on their cruiser and traveled to Uhanayih to seek out the Yinchorri command center . Having arrived at Uhanayih , their unarmed cruiser was attacked by a massive Yinchorri fleet . Luckily for the Jedi , help came in the form of a Republic reinforcements consisting of light assault cruisers and armed CSS - 1 Corellian Star Shuttle s . Soon , much of the Yinchorri fleet had been destroyed or immobilized , allowing the Jedi to make their way to Uhanayih . Windu then ordered Qui - Gon to contact the Admiral in charge of the Republic forces and request for an escort for their trip to the Yinchorri high command . Thus , the Jedi cruiser approached the moon with the escort and entered a huge tunnel which led to the Yinchorri base . Having arrived and seeing no place to land , the Jedi cruiser crash - landed into the high command ' s war room before the defending Yinchorri could close its blast shutters . Meanwhile , in the war room , one of the Yinchorri remarked to his companion that the Vilmarh had assured that the Republic would not intervene . His friend then replied that Vilmarh and his men had fled and then ordered the blast shutters to be shut . However , it was too late . The cruiser wrecked the war room , causing heavy damage to the Yinchorri . The commander begged the victorious Jedi not to kill them . Windu replied by remarking that those Yinchorri were responsible for the chaos and then asked Gallia about what Master Oppo Rancisis said about the philosophy of " might makes right " . Gallia replied by telling him that that philosophy is " often recanted " upon encountering a more powerful foe . Aftermath . Having been bested by the Jedi and the Republic , the Yinchorri commanders announced news of their surrender ; bringing a cessation to all hostilities . The Yinchorri system was placed under interdict and quarantined by the Republic Navy , preventing transportation to and from the system . Evidence taken from Holgrath and Yinchorri sources implicated the Devaronian Vilmarh Grahrk in the plot . However , Master Yoda commented that the Yinchorri were pawns in a much larger scheme . The surviving Jedi arrived at their Temple on Coruscant with the bodies of their fallen comrades to a sombre procession . Following a debriefing , the Jedi Council appointed the Cerean Jedi Knight Ki - Adi - Mundi as the late Giiett ' s successor . By evaluating the situation , Yoda concluded that the fugitive Vilmarh lacked the motives to incite the Yinchorri , but was working with an unknown third party . In the long term , the Yinchorri Uprising fitted into Darth Sidious ' plans for galactic domination . Firstly , it weakened his Jedi foes by eliminating seven Jedi including one member of the Jedi Council . Secondly , it temporarily removed the threat of the Yinchorri to his plans . Given their aggression , expansionism , use of cortosis , and immunity to mind tricks , they would have posed a threat to his New Order . On the political level , the uprising tarnished Chancellor Valorum ' s reputation and paved the way for Senator Palpatine ' s own rise to power . His responsibility in the deaths of the Jedi during the uprising , the slow reaction from the Senate , and the using up of his political capital in passing the Act left Valorum ' s administration stagnant . Consequently , the incident was the first step down the path that resulted in him being removed from office the next year during the Invasion of Naboo by the Trade Federation . During the Imperial era , the Yinchorri would again come to Sidious ' attention as Emperor . Around 3 ABY , the Imperial Governor Marcellin Wessel held their Council of Elders hostage to force them to deliver the Rebel leader Leia Organa captive to the Empire . In the end , the Empire slaughtered the Council , and the Yinchorri rebelled . In retaliation , the Empire devastated Yinchorr and destroyed its main city Tol - Kachorn . Palpatine later had the Imperial Royal Guard Academy set up on this distant , devastated world . The harsh desert world made it ideal for the training of these elite guards . After the planet was liberated by the New Republic , the Yinchorri began to rebuild their society , but did not rejoin the galactic community .