Imsatad Imsatad was an officer in the Imperial military who later fought for the New Republic , and afterwards defected to the Peace Brigade . Biography . Imperial and New Republic service . Imsatad served under Grand Admiral Thrawn in his campaign against the New Republic in 9 ABY , and he was part of the garrison on Wayland when Luke Skywalker and Talon Karrde infiltrated the Mount Tantiss base and defeated Joruus C ' baoth . This experience may have accounted for his later hostility towards the Jedi , but it also gave him an appreciation of the capabilities of vornskr s and ysalamir i in tracking down and nullifying Force - sensitives . By the start of the Yuuzhan Vong War , Imsatad was serving with the New Republic military — a rough - looking man whose hair was by now turning gray . He participated in the Battle of Dantooine , but his experiences here convinced him that the Yuuzhan Vong could not be beaten , and he also persuaded himself that the war was the fault of the Jedi Order . Imsatad decided to switch sides , and when Warmaster Tsavong Lah claimed that the war would end if the Republic surrendered the Jedi Knights , he organized a force to attack the Jedi Academy on Yavin 4 , hoping to capture the Jedi students there and hand them over to the Yuuzhan Vong . Raid on Yavin 4 . Imsatad ' s squadron for this raid consisted of thirteen combat - capable starships , including corvettes , armed light freighters , E - wing starfighters , and a frigate which served as his command ship . He claimed to be an officer of the Peace Brigade , with the rank of Captain , and one of his subordinates , Kot Murno , identified himself as a Lieutenant , but some of their men and ships , such as Remis Vehn and his freighter , were apparently hired specifically for the attack . Imsatad sent one ship ahead to scout out Yavin 4 , which lurked in orbit for several days before he brought his main group in . The near - simultaneous arrival of Anakin Solo alerted the Jedi to the attack , however , and the Academy quickly went into hiding . The Jedi were still trapped on the surface , but Imsatad ' s initial plans had been frustrated , and he was unable to track the Jedi down in the dense jungle and the caverns and chambers of the Temple complex . Next , Talon Karrde arrived , dispatched by Luke Skywalker to evacuate the Academy . The " Wild Karrde " was outgunned by Imsatad ' s squadron , and the ex - Imperial distrusted this " traitor to the Empire " , but Karrde was able to lure him with a promise of vornskrs and ysalamiri to help him in his search . The Brigader decided to take the risk , and Karrde was allowed to land , albeit under heavy guard . In spite of these precautions Karrde was able to trick the Brigaders , and evacuated Kam Solusar , Tionne and most of the young Jedi aboard the " Wild Karrde " . Only Tahiri Veila was captured , although Jedi Master Ikrit was killed , and Anakin , Valin Horn , and Sannah remained trapped on the jungle moon . Aftermath and execution . Shortly afterwards , a large Yuuzhan Vong squadron arrived in - system , ostensibly to tap water from Stroiketcy , but also apparently to raid the Jedi Academy and in preparation for the establishment of a damutek on the jungle moon . They were surprised to find the Peace Brigade there , and angered to discover that the Jedi had gone , but it was a week before a senior officer , Commander Tsaak Vootuh , arrived to meet with the Peace Brigade Captain . Imsatad initially hesitated to reveal that he had Tahiri prisoner , but sensing the Yuuzhan Vong ' s irritation he offered to hand her over , insisting that only his intervention had prevented Karrde from rescuing all the Jedi . He did not reveal that some of the Jedi were still trapped on the moon , however — perhaps , as Anakin had predicted , he didn ' t want to reveal his own failure to capture them . But Imsatad had miscalculated . Karrde ' s ships had remained at the edge of the system , and Tsaak Vootuh had guessed that there must be more than one Jedi left to rescue on Yavin 4 . Realizing his mistake , the Brigader attempted to show his continuing usefulness by offering the information that Anakin Solo was among the trapped group , but the Yuuzhan Vong commander could no longer disguise his contempt for the infidel . As he had probably planned all along , Tsaak Vootuh signaled for Subaltern Vo Lian to impale the Brigader with his amphistaff . Subsequently , the Yuuzhan Vong ships seem to have destroyed the Peace Brigade vessels , while the warriors captured most of Imsatad ' s men for ritual execution .