Outer Rim Sieges / Legends The Outer Rim Sieges ( 20 – 19 BBY ) were the series of fierce battles that took place throughout the planets of the galaxy ' s Outer Rim Territories , such as Saleucami and Mygeeto , which marked the final phase of the Clone Wars . History . Fighting in the Outer Rim . From the beginning of the Clone Wars in 22 BBY , the Galactic Republic struggled to gain an advantage over the Confederacy of Independent Systems . By 19 . 48 BBY , thirty months into the conflict , the Republic , having finally committed enough of its industrial might toward the war effort , was winning the war . The Republic won a series of key battles at Duro , Commenor , and Balmorra , driving the Confederacy from its bases in the Core Worlds and the Colonies regions of the galaxy . The Confederate Navy retreated to the Mid Rim and the Outer Rim Territories , reinforcing its vast holdings on both sides of the Slice . Count Dooku also had other Confederate forces marshaled at Xagobah , Siskeen , Clak ' dor VII , and Sluis Van . The Outer Rim Sieges began when , in response to the Separatist retreat , the Republic became fully committed to pummeling CIS bases at the borders of the Rim . Besides targeting Ryloth and Ossus , Jedi - led fleets from the Republic Navy assaulted Ord Radama and New Bornalex in an effort to reach Celanon and Count Dooku ' s homeworld of Serenno . Republic forces pursued the Separatists from Commenor to Kashyyyk , eventually sparking the Battle of Kashyyyk ; and also from Duro to Bomis Koori IV , Tar Morden , and Sarrish , with further fighting break out at Triton and Llanic . Republic battle group s launched from Excarga and Rothana to clear the outer Corellian Run , attacking Siskeen and Tellanroaeg . Besides the Battle of Kashyyyk , pivotal battles of the Outer Rim Sieges became the Battle of Boz Pity ( 19 . 43 BBY ) , the Siege of Saleucami , and the Battle of Felucia in 19 BBY . Jedi General Traavis led a series of campaigns against the Cassandran Worlds of Monhudle , New Bakstre , and Biitu , later moving his forces to assault Garqi . Jedi Master Plo Koon ' s victory at the Ywllandr system allowed Jedi General Ki - Adi - Mundi to invade Mygeeto . Another battlefront became Belderone , where General Grievous had planned to hide the Separatist Council , forcing him to move the Council to Utapau . Morale in the Core became high , as much of the Republic citizenry believed that the end of the war was near . In reality , the purpose of the Outer Rim Sieges was to enmesh the majority of the Republic ' s forces at the fringes of its borders . Once committed , the Jedi and their detachments from the Grand Army of the Republic found themselves unable to break off , leaving Coruscant and the Core Worlds vulnerable . With the Republic ' s attention focused in the Outer Rim , Supreme Chancellor Palpatine — with the Jedi Order about to discover his secret alter ego of the Dark Lord of the Sith Darth Sidious — ordered General Grievous , as Sidious , to target the Republic capital world of Coruscant , six months into the Outer Rim Sieges . Victory for the Republic . The Sieges — and the war in general — were brought to an abrupt end when Palpatine ordered the Republic ' s clone troopers to carry out Order 66 , a contingency plan meant to exterminate all the Jedi should they ever betray the Republic . Spread thinly throughout the galaxy and isolated from each other , the Jedi were caught off guard when their clone soldiers turned on them , and most of them were killed immediately in the opening minutes of what became the Great Jedi Purge . On Mustafar , Darth Vader killed the Separatist Council and deactivated the droid armies , bringing the CIS to an end . Palpatine then declared himself Emperor of the galaxy , and reorganized the Republic into the Galactic Empire . Behind the scenes . The earliest mention of this campaign comes from " Han Solo and the Corporate Sector Sourcebook " , where Alexsandr Badure is described as a veteran of the " Outer Rim Wars " portion of the Clone Wars .