Thyferra / Legends Thyferra was a hot , humid planet located in the Polith system on the Rimma Trade Route , on which most of the galaxy ' s bacta was produced . It was also a major political power as bacta production was an essential commodity . Characteristics . Thyferra , in the Inner Rim ' s Polith system at galactic coordinates L - 14 , and was the homeworld of the Vratix people . History . The Vratix had already colonized many celestial bodies in the Polith system when they were in first contact with the Galactic Republic around 4100 BBY . Since the Vratix had discovered how to create bacta from alazhi and kavam , the planet became an important Republic world , drawing profit - hungry human colonists . The Vratix shared the secret of bacta production with their Human neighbors , who eventually gained control of the bacta industry and hired many of the natives as workers in their bacta plants . Between 3959 BBY to 3956 BBY , during the Jedi Civil War , the planet had become part of Revan ' s Sith Empire . During the Clone Wars , the Third Fleet of the Confederate Navy was based at Thyferra . In 20 BBY , the fleet joined the First Fleet for an attack on the Core Worlds planet Duro . Eventually , Thyferra was almost completely controlled by two Human - run corporations : Zaltin and Xucphra . These two corporations were chosen by Emperor Palpatine to supply the Empire ' s bacta , thus eliminating any real competition in the bacta market . Prior to the Battle of Yavin , Darth Vader led an assault to root out a traitor . At the end , he Force - choked an Imperial commander . The Rebel Alliance ' s bacta supply on the planet was a target set by Moff Kohl Seerdon . Around 1 ABY , after setting a diversion on Sullust , he invaded the planet , sending AT - STs and TIE interceptors to prevent Alliance bacta from reaching the group . However , the plot was thwarted by Rogue Squadron , and Seerdon was killed after engaging Luke Skywalker in a dogfight . Thyferra was liberated by the New Republic in 5 ABY . However , the New Republic didn ' t settle on the planet which stayed officially neutral in the war . Thyferra was in fact in trouble due to significant tensions between Humans and Vratix and between the Xucphra and Zaltin Corporation . In 7 ABY , Ysanne Isard backed a coup that saw a pro - Imperial faction taking over Thyferra . The faction later elected her head of state , allowing her to remain in lawful power , eliminate the Zaltin , control the bacta industry , and start a small but important conflict known as the Bacta War . During the Battle of Thyferra , Rogue Squadron and its allies , operating at the time independent from the New Republic — which for political reasons could not directly interfere — liberated Thyferra from the Empire and imperial loyalists using guerrilla tactics , pluck , and native allies . During the Yuuzhan Vong War , the Yuuzhan Vong attempted to poison the planet ' s bacta supplies . The scheme did not come to fruition . Thyferra later joined the Killik s in the Swarm War , the New Jedi Order being unable to defend it from a coup orchestrated by the Killiks . Following the end of the war , Thyferra reverted to Alliance control . Behind the scenes . The planet Thyferra first appeared in the article " The Business of Bacta " , and then in the " X - wing " novel series . A battle takes place on the planet in the Imperial campaign of the 2006 video game " . "