Battle of Dorin The Battle of Dorin took place in late 22 BBY during the Clone Wars , when General Grievous of the Confederacy of Independent Systems struck at the Kel Dor homeworld of Dorin in retribution for the planet ' s loyalty to the Galactic Republic . The Separatist invasion also served as a diversion to prevent the Republic from assaulting the Confederacy ' s new droid foundry on Geonosis , which the Republic had recently discovered . Although the Kel Dors suffered in the defense of their planet and initially began to be overwhelmed by Grievous ' s battle droid troops , a large Republic fleet under the command of Jedi Generals Plo Koon and Anakin Skywalker , Admiral Wullf Yularen , and Jedi Commander Ahsoka Tano arrived to reinforce Dorin . In the subsequent naval engagement , the Jedi and their clone trooper starfighter squadrons were able to turn the tide against the Separatist assault fleet , forcing a Confederate retreat from Dorin . While his remaining forces were routed by the Republic , Grievous managed to escape from the battle in his personal starfighter . Prelude . Late in 22 BBY , the first year of the Clone Wars , the Confederacy of Independent Systems built a series of battle droid foundries on the planet Geonosis , the site of the war ' s opening battle , to expand the lines of its Droid Army . Although the factories were to be kept a secret from the Republic , they were nevertheless discovered by Senator Padmé Amidala , while on a retreat with Senator Rush Clovis of the InterGalactic Banking Clan at Trade Federation Senator Lott Dod ' s palace on Cato Neimoidia . Amidala secured a disk containing tactical coordinates for the main droid foundry and passed the information on to the Jedi High Council , which looked to invade Geonosis to shut down the foundries . In order to divert the Jedi ' s attention from striking at Geonosis , the Confederate General Grievous planned an attack on the Republic - loyal planet Dorin , the homeworld of the Kel Dor species . The battle . Commanding his troops from the bridge of his frigate , Grievous launched an assault on Dorin with a large fleet of two " Lucrehulk " - class Droid Control Ships and sixteen " Munificent " - class star frigates , deploying his battle droid army to lay waste to the civilian Kel Dor population . Although the Kel Dors valiantly fought back against the Separatists , they soon began to be overwhelmed due to the enemy support of Grievous ' s invasion fleet . During the fighting , Grievous ordered his battle droid commander to press the attack , seeking to make the Kel Dors pay the price for their allegiance to the Republic . The commander replied that their BX - series droid commandos would hunt down any survivors of the initial assault . Presently , the Jedi Temple received word of the invasion , and Jedi Grand Master Yoda dispatched Jedi Generals Plo Koon — a Kel Dor himself — and Anakin Skywalker along with the latter ' s Padawan , Jedi Commander Ahsoka Tano ; a Jedi Knight ; and Admiral Wullf Yularen to lead a Republic fleet to reinforce Dorin . Skywalker in particular was selected for his starfighter piloting expertise , which would be invaluable in leading the task force because of Dorin ' s orientation between two black holes . Separatist intelligence received word of the Republic task force ' s departure from the galactic capital of Coruscant , and Dark Acolyte Asajj Ventress relayed the warning to Grievous . To prepare for Skywalker ' s arrival , Grievous recalled his troops from the surface and deployed his droid starfighters for battle . Koon , Skywalker , Tano , Yularen , and the Jedi Knight arrived at Dorin with their task force of nine " Venator " - class Star Destroyers , including the " Resolute " and " Unity " , and engaged the Separatists in the space above the planet . The Republic flotilla dispatched squadrons of clone trooper – piloted V - 19 Torrent starfighters , with one led by Skywalker and the Jedi Knight from their Delta - 7B interceptors , and another unit under the command of Tano . Skywalker and Tano made sport of their respective squadrons ' number of kills , seeing whose fighter group could tally up more hits . While the Jedi and their starfighter squadrons combated the Separatists ' fighter patrols of " Hyena " - class bombers and Vulture droid starfighters , the Republic Star Destroyers exchanged laser fire with the Separatist frigates over Dorin . However , the latter vessels used their heavy turbolaser cannons to tear through the deflector shields of the Republic cruisers , destroying the " Unity " in the process . With Yularen and the " Resolute " now subjected to enemy fire , Skywalker responded by having his squadron focus on the enemy frigate that was bearing down on the " Resolute " . The battle soon turned in the Republic ' s favor as the Confederate forces began to be overwhelmed . When his fleet was forced into retreat from Dorin , Grievous departed from his flotilla in his personal starfighter , and Skywalker and his Jedi Knight compatriot immediately left their squadron to give chase , while Plo Koon took their men to target another enemy frigate . Despite the Jedi ' s efforts to stop him , Grievous was able to escape to hyperspace , abandoning his remaining forces to be routed by the Kel Dors and the Republic . By the time the battle was over , the Jedi ' s squadrons had achieved a number of enemy kills , totaling at least 131 between Skywalker ' s and Tano ' s men . Aftermath . With their victory at Dorin , Skywalker , Tano , Yularen , and the " Resolute " joined the large Republic invasion force at Geonosis , under the overall command of Jedi Masters Obi - Wan Kenobi , Ki - Adi - Mundi , and Luminara Unduli . Skywalker and Tano briefly recounted their enemy kills at Dorin by comparing them against those of each other , with Skywalker boasting his greater tally , seventy - six , to Tano ' s fifty - five . After completing a briefing with their clone commanders and forming a plan of attack on the Geonosian surface defenses , the Jedi launched their massive invasion aimed at retaking Geonosis and shutting down its droid factories . Journals written by Jedi who had participated in the Battle of Dorin , as the conflict became known , were eventually published in a collection known as the Jedi Battle Logs . Behind the scenes . The Battle of Dorin was created by Series Director Dave Filoni for the 2009 of the , serving as a lead - in to the episode " Landing at Point Rain . " It was introduced at a script reading that was organized by Filoni and was performed by the television series ' main voice - acting cast at the October 2009 " Star Wars " Fan Days III convention . The battle was first depicted in the " Starfighter " mini - game of the 2010 , which also provided the " Battle of Dorin " name .