At some point prior to the Belkan War, Fassbinder joined the Belkan Air Force and was assigned to the Schnee Team. On May 28, 1995, the unit engaged the Galm Team over Area B7R, where Fassbinder was shot down.
Following the Schnee Team's disbandment, he gathered pilots from various squadrons and formed the 901st Tactical Fighter Squadron. The squadron remained until the end of the war. However, Fassbinder was shot down and killed just before the war's conclusion.