Galactic Outdoor Survival School The Galactic Outdoor Survival School , commonly abbreviated as GOSS , was an institution operating during the Galactic Civil War to teach survival skills . The GOSS was founded by Barosa Warren on the planet OM813 — otherwise known as Thrantin — and served as a training camp for students from all over the galaxy . It ensured students learned survival skills in environments that would pose a challenge to their species ' particular physiology ; for example , a Mon Calamari student would learn how to survive in arid areas such as deserts . Graduates described the school as a combination of educational facility and survivalist camp , with a crude mentality , but an excellent result . GOSS was noted for training some of the most proficient survivalists of any military institution — although it was an unofficial organization , not backed by the Empire or the Rebel Alliance . History . Barosa Warren had always wanted to create a survivalist school . Being still young ( in his 110s ) , but already a galaxy - known authority in hostile terrain survival , Warren decided to retire and create his academy . He required the financial help of many friends ( losing their friendship in the process ) , but he finally managed to buy a planet OM813 , ( later renamed Thrantin ) around 59 BBY . During the four decades after that , he spent many people ' s money planetforming his world to create a training camp for his school . He created a Zero - G environment , an Ammonia Ocean , and the Heavy Grav Mountainous Zones . He would have liked to take his students to different worlds , so that they could train in real , natural environments ; however , he also admitted the advantages of a controlled environment to avoid any " cheating " student . Warren also obtained dozens of ships to be used during the instruction , including at least seven modified " Mu " - class shuttles and his own flagship , the " Cannibal " . After four decades of preparation , around 19 BBY , the Galactic Outdoor Survival School ( or " GOSS " ) opened , with Warren as its chancellor , dean , and master instructor . During the following years , the school became prestigious galaxywide . Many of its alumni had become scouts for the Empire , the Rebellion or private interests ; a few of them had became instructors at the GOSS . Around 17 BBY , the Summit Class became the greatest class ever in the GOSS , managing to get the record in the final trek used as an exam . Warren respected the results and the performance of the Summits . Seven years later , the Twilight Class broke the Summits record by more than one day . Warren took the mine survivalist of the Twilights , Larq Thur , and offered him a job as instructor at GOSS ; however , Thur joined the Rebellion with his fellow Twilights . Former Summit student Lunkar An , who had since created his own survival academy , felt his ego shaken after that and re - joined GOSS as a student , trying to " redeem " himself . Although the GOSS was not affiliated with the Empire , Warren ' s dislike for the Rebel Alliance was well - known , and he held a personal grudge against those ex - alumni who joined the Rebel Alliance , such as the Twilight Class . The Alliance considered Warren ' s staff members as a threat due to their personal loyalty to Warren .