Ruusan / Legends Ruusan was a planet in the Mid Rim most famous for the Ruusan campaign , the last stand of the Brotherhood of Darkness under Lord Kaan and the birthplace of Darth Bane ' s Order of the Sith Lords . The planet lent its name to the Ruusan Reformation s enacted after the battle . Characteristics . Ruusan was originally a temperate , pleasant world , inhabited by Ruusanian s , Humans , and a strange sentient species known as Bouncer s . Ruusan ' s mineral deposits proved disappointing but it was the only source for the Ruusan crystal . Ruusan had three moons , referred to by locals as the " Three Sisters . " Smugglers claimed that at least one of the moons had ruins of an ancient civilization . History . The planet was first colonized between 15 , 000 BBY to 8000 BBY , sometime between the Kymoodon Era and Rianitus Period . In 2200 BBY Ruusan was one of the ore - rich planets of the Teraab sector claimed by the Mining Guild , until the planet proved disappointing . All that remained on the planet were few optimistic claim jumpers and fugitives . Ruusan was the site of seven battles between the Sith ' s Brotherhood of Darkness and the Jedi ' s Army of Light . During the last battle of Ruusan ( 1000 BBY ) between the Jedi under Lord Hoth , and the Sith under Lord Skere Kaan , much of the planet ' s surface , including vegetation and several cities , were destroyed . After the battle had ended , a Jedi Knight named Johun Othone petitioned the Galactic Senate to construct a grand mausoleum containing the one - hundred fallen warriors called The Valley of the Jedi , located on the former location of Olmondo . Despite this , the expanding nebulae of the sector erased the hyperlane s connecting Ruusan and the world was quickly forgotten , as the Galactic Republic turned inward . Isolation and crossbreeding amongst the inhabitants produced a near - Human population that became known as Ruusanian s . Shifting nebulae within the stellar nursery of the Teraab soon erased hyperspace routes to Ruusan , leaving it inaccessible from the galaxy at large . The Separatists briefly established a spy post over one of Ruusan ' s moons during the Clone Wars , but it was soon destroyed . By the time of the Galactic Empire ' s reign , Ruusan was mostly forgotten . Rediscovered by the smuggler Jerg in 11 BBY , the planet came to be used by independent spacers and merchants as a base of operations . A decade later , Rebel refugees from Sulon settled on the planet , following Jerg and Morgan Katarn . The planet ' s isolation would end shortly after the Battle of Endor . The Dark Jedi Jerec , informed of the location of the Valley of the Jedi , came to the planet intending to claim the Valley ' s power for himself . The Jedi Kyle Katarn , assisted by the spirit of Qu Rahn , managed to stop Jerec , slaying the Dark Jedi below the monuments that Othone had built centuries ago . Katarn would return to Ruusan in 12 ABY to reestablish his connection to the Force , during the confrontation of the Empire Reborn , and in 14 ABY , during the Disciples of Ragnos crisis to investigate the Valley of the Jedi for cult activity . The world was later targeted by the Yuuzhan Vong , who successfully invaded and occupied the planet over a year into their invasion of the galaxy . It would remain under Vong control until the end of the war .