Trif, once a member of the Imperial forces, later switched allegiances to fight alongside the Alliance of Free Planets.
During the Nagai–Tof War, Trif was both a soldier and a staff pilot working under Fenn Shysa. In that same war, which took place not long after the Battle of Endor, he became part of a fleet assembled at the world of Godo. There, in the confrontation between the Alliance fleet and the Godoans, he, alongside pilots such as Wedge Antilles, Fenn Shysa, Nien Nunb, and Maggie, supported Han Solo. Subsequently, he participated in the last battle of the war as a member of a small team tasked with infiltrating the Tof base located on Saijo.