Ukio / Legends Ukio was a well - known agriworld in the Ukio system of the Abrion sector and the homeworld of the Ukians . It served as one of the top producers of foodstuffs for the Core Worlds . Description . Ukio was located within a star system of the same name in the Abrion sector of the Outer Rim Territories region of the galaxy . It was situated on the Manda Merchant Route , a hyperlane that connected it to Rishi and Molavar . Ukio itself was a large , terrestrial planet with gentle winds , calm weather , and a mild climate , which featured virtually no seasonal variation due to the world ' s slow rotation and low axial tilt . It had a breathable atmosphere and light gravity . Ukio ' s land consisted of three major continents cut through by hundreds of rivers . An Ukian day lasted 22 standard hours and an Ukian year lasted 357 local days Ukio was one of the best - known and most efficient agricultural planets in its sector , featuring a growing season which lasted most of its year and ideal conditions for the production of grain and other foodstuffs . Ukio ' s surface , originally dominated by rolling hills and wild grasses , was almost entirely given over to food production , but still contained ample fallow land for future expansion of the industry . Hundreds of rivers provided natural irrigation , which was expanded through the use of technology which harnessed and diverted them . Ukian farmland was carefully cultivated and painstakingly maintained for maximum output , and crop rotation was required by law to prevent the destruction of arable land . The world was governed by the Overliege , a hereditary monarch , and was defended by planetary shields , which were operated by the Ukian Defense Service . Sashasa was a city on Ukio . History . Early history and secession . The region of space surrounding Ukio was explored between 15 , 000 and 8000 BBY , and during the final years of the New Sith Wars , it was within space controlled by the Sith Brotherhood of Darkness . Ukio was later part of the Galactic Republic and provided a sizeable percentage of food shipments to the Core Worlds by 23 BBY , but in the following year , the world seceded from the Republic along with the rest of the Abrion sector . At the time , it was ruled by Overliege Topas dosLa , who wanted his world to have better control over its exports and to no longer suffer under burdensome Republic tariffs . When the Clone Wars began , Ukio was within space controlled by the Confederacy of Independent Systems , but this did not last thanks to Jedi Master Yoda , who negotiated a personal entreaty that brought back the planet into the Republic . However , in the aftermath of the battle of Ukio , the planet was taken over by the Corporate Alliance . Imperial Period and later history . Ukio was later part of the Galactic Empire , and many native Humans joined the military , including Corporal Oberk and Sergeant Narthax . Ukio eventually fell into the hands of the New Republic , but was later attacked by Thrawn during his campaign against the New Republic . This was where he first used the trick , coordinated by Joruus C ' baoth , of firing turbolaser blasts at the shields and having cloaked ships , which had sneaked in with the planetary shields down , to fire . This caused the appearance that Thrawn was firing through the shields , and Ukio surrendered .