Treeg, a male Zabrak holding the rank of major in the Republic Army, served on Quesh during the period of the Cold War. He was the principal strategist and chief assistant to General Korvan. Treeg held a different opinion than Korvan regarding the strategy to combat the Sith Empire's assault on Quesh. Korvan prioritized protecting the venom mines and the workers on the planet, while Treeg advocated for a swift, direct offensive to bring the invasion to a conclusion. Ultimately, Korvan's strategies were successful, resulting in the defeat of the Imperial forces. However, Sith Lord Magras contacted Treeg, and Treeg chose to betray the Republic and join the Empire, hoping for acknowledgement of his skills. Assisting Magras, Treeg played a key role in the capture of Broga Masrii, the leader of the Three Families. Shortly after, a Republic operative arrived, defeating both Magras and Treeg and freeing the Hutt. Subsequently, Treeg was apprehended and faced a trial for treason.