Cato Neimoidia Cato Neimoidia was a planet in the Cato Neimoidia system , within the Quellor sector of the galaxy ' s Colonies region that was a wealthy colony world of the Neimoidian s and the base of operations for the Trade Federation . Much of the world was covered in a persistent fog , while the bridge cities of Cato Neimoidia were suspended above the planet ' s ocean surface on bridges anchored on massive giant rock arches , upon which thrived forest s and grass lands . Description . Cato Neimoidia was located in the Cato Neimoidia system , within the Quellor sector of the galaxy ' s Colonies region . Emerging from the depth of its stormy , geyser - spouting ocean s , were massive rock arches , cliffs , and canyons where the fog - covered planet ' s forest s and grass lands thrived . History . During the Clone Wars , the Trade Federation signed over their holdings , including Cato Neimoidia to the Intergalactic Banking Clan in exchange for a loan to purchase equity in a new droid factory . Senator Rush Clovis of the InterGalactic Banking Clan visited Cato Neimoidia to negotiate with Senator Lott Dod of the Trade Federation at his palace while accompanied by Senator Padmé Amidala of Naboo , who was secretly investigating rumors of the Banking Clan backing the Confederacy of Independent Systems . Sometime later , Anakin Skywalker and Ahsoka Tano were sent to assist in defending Cato Neimoidia from the Separatists , but shortly after their dramatic arrival on the planet they were summoned back to Coruscant to investigate the bombing of the Jedi Temple hangar . At one point , Jedi Master Obi - Wan Kenobi and Anakin Skywalker were involved in ' messy business ' on the planet which required Kenobi to be saved by Skywalker . Kenobi , however , felt that this particular rescue didn ' t count towards Skywalker ' s running tally of the number of times that he had saved him . During the final days of the Clone Wars , Jedi Master Plo Koon led the Grand Army of the Republic in an attack against the Separatist Alliance on the planet , resulting in a Republic victory . Following the battle , Supreme Chancellor Sheev Palpatine ordered the execution of Clone Protocol 66 , forcing the Jedi General ' s own wingmates to open fire on his starfighter , killing him along with the thousands of other Jedi across the galaxy affected by this swift command . Nearly 28 years after the Battle of Yavin , a mysterious and extremely dangerous annual race known as the Gauntlet took place on Cato Neimoidia . Inhabitants . Cato Neimoidia was one of the most prominent purse - world s colonized by the Neimoidian s , a wealthy species originally from the planet Neimoidia who operated the Trade Federation , which controlled most of the interstellar shipping passing through the Rim territories . One of the wealthiest corporate organizations in the galaxy , Cato Neimoidia was the Trade Federation ' s headquarters and was eventually developed to the point that it was considered to be a more desirable and hospitable destination than the Neimoidian homeworld . The Neimoidians constructed opulent bridge cities that spanned the world ' s rock arches and cliffs and jeweled palaces owned by Trade Federation baron s , who sought constantly to one - up each other and dazzle guests with displays of ostentatious hospitality and luxury living . Behind the scenes . Cato Neimoidia was originally developed as one of a montage of planets , when the initial story of the 2005 film opened with a series of Clone Wars battles across the galaxy . Cato Neimoidia ( often spelled Niemoidia at this stage ) was very different in its early incarnations . It was a gas giant surrounded by an artificial ring space station , which was meant to echo the donut - ship design of the Neimoidian Trade Federation battleships and was eventually reused for the planet Ringo Vinda . Always envisioned as an affluent world , its interiors were marked by golden structures and gaudy riches in early paintings . At the same time , the Art Department was developing " bridge world , " a planet then named Saleucami . This planet of curving arc - like structures with city skylines suspended on the bottom edge of the bridges was to be home of the Techno Union . Both designs were dropped from the film in the finished shooting script , though Cato Neimoidia was mentioned twice as a place where Obi - Wan Kenobi , Anakin Skywalker , and Commander CC - 2224 had some rocky history . The shooting script also described Order 66 and Plo Koon ' s death , but in this version , Koon is killed over Mygeeto . During postproduction , the mix of planets changed , and Plo Koon was moved off Mygeeto . The bridge world was resurrected and modified — the city skyline now rested atop the bridges , and it was no longer a Techno Union world . It was identified as Cato Neimoidia , and the name Saleucami was reused elsewhere for a reworked concept . The concept of city skylines suspended on the bottom of bridges eventually appeared in " Sabotage , " the seventeenth episode of the canon animated series " " , which originally aired on February 9 , 2013 .