Tanye Trila served as a sergeant within the Republic Army throughout the Cold War and the Galactic War. These conflicts pitted the Galactic Republic against the reconstituted Sith Empire.
Known for her formidable nature, Trila participated in numerous campaigns across the galaxy. These included engagements against separatist forces at Mannett Point located on Ord Mantell, and battles against the Empire at Axial Park situated on Corellia. Furthermore, she became involved in the conflict against the Dread Masters, a group of rogue Sith Lords. She was present on Belsavis during their escape and provided military support against Kephess and his Warstalkers on Denova.
In 3638 BBY, Trila held a position within Strike Team Oricon, an expedition led by Jedi Master Ogan-Dei with the goal to bring an end to the Dread Masters at their newly discovered base on the volcanic moon of Oricon. The Dread Masters decimated the majority of the force, leaving Trila as the highest-ranking military member to survive. While Ogan-Dei employed his Jedi abilities to safeguard the base camp from the Dread Masters' powers, Trila deployed a Republic strike team of heroes into the field. Their mission was to combat the Dread Host and prepare the way for an assault on the Dread Fortress.