Yung, a male soldier of the Human species, served in the Republic Army during the Battle of Corellia in 3640 BBY. This battle saw the Republic clashing with the Sith Empire. During this conflict, Yung's squad, led by Sergeant Herron, attempted a mission to retrieve several recently designed shuttles from the facility owned by the Rendili Vehicle Corporation's. However, Imperial troops had taken over the factory, causing the mission to fail due to inaccurate information regarding the strength of the opposing forces. Herron then requested assistance from other Republic and Jedi personnel. These reinforcements successfully infiltrated the factory, creating an access tunnel that allowed Yung's unit to enter the facility and successfully abscond with the shuttles.