Vaklin insurgency The Vaklin insurgency was a conflict that took place in 19 BBY on Vaklin between forces of the Galactic Empire and Vaklin insurgents . Darth Vader defeated and killed three Jedi , including Cho ' na Bene . Background . In 19 BBY , Imperial forces invaded the planet Vaklin as part of the Great Jedi Purge . Indeed , Vaklin was a world deeply - seated in pro - Jedi tradition . When the Empire asserted its control over the planet , Jedi Knight Cho ' na Bene and two fellows , a Jedi Master and his apprentice , instigated an insurgency against the Empire . With the populace actively working against the Empire , Darth Vader was dispatched to turn the people against the Jedi and put down the insurrection . The insurgency . Following his arrival on the planet , Darth Vader was successful in killing the Jedi Master who aided Bene . His apprentice was captured four days later and imprisoned in the Imperial command center . Despite these early successes , the conflict soon bogged down . During the two next weeks , Imperial forces were harassed by the insurgents and Cho ' na Bene . While Vader and clone stormtrooper s kept patrolling the planet , Major Oniye Namada of the Imperial Security Bureau investigated the infiltration of the insurgents among the population . The Sith Lord did not manage to crush the insurgency and Namada was not successful in gaining the population ' s trust . In the last ambush , many 501st Legion stormtroopers were killed in the Howling Ruins . Soon after the attack in the Ruins , the insurgents struck the Imperial command center in order to liberate the Jedi Knight . A mouse droid bomb exploded in the base , allowing the rebels to enter the detention center . However , all were killed by Vader , including the Jedi prisoner who revealed the location of Cho ' na Bene before his death . Furious , Vader decided to bombard the main population center to submit the planet , but Emperor Palpatine refused the loss of Vaklin ' s population and resources . Forced to develop a new strategy , Darth Vader required the assistance of Major Namada to understand why the population remained so loyal to the Jedi . The Sith Lord planned to erase the Jedi remembrance of the population . Oniye Namada organized the systematic destruction of everything related with the Jedi Order on Vaklin . Jedi statues in Vaklin Zenith were razed , the Northward Park was burned , and the site of a Clone Wars battle was cleaned . Imperial forces introduced themselves as protectors for the population and an education center was built to enroll the Vaklin youth in the Empire . Meanwhile , Darth Vader continued his hunt for Cho ' na Bene in the Temple of Imperfect Repose . In the temple , he killed the Tuk ' ata Nobilis creatures living inside and the Temple ' s steward . The structure was later completely destroyed in an orbital bombardment . Vader eventually found Cho ' na Bene in the caverns beneath the temple . The Sith and the Jedi briefly dueled until Bene became ill from a lethal dosage of azetal gas present in the caves . Vader remained immunized thanks to his armor . At the end , the Sith Lord did not execute the Jedi , but allowed him to escape the temple ruins . Cho ' na Bene managed to arrive in Vaklin Zenith , but only to be shot and killed in the city square by Oniye Namada after the once loving citizens turned their back on helping him . Aftermath . With the death of Cho ' na Bene , the Vaklin population lost its faith in the Jedi . This execution and the established propaganda allowed the Empire to convince people that the Jedi were not heroes . Afterwards , the insurgency quickly vanished . Emperor Palpatine was pleased by this outcome and the opinion reversal on Vaklin was intended to be an example for the continuation of the Great Jedi Purge .