At the end of the Third Robotech War, the Haydonites, known to the Invid as the Children of the Shadow, betrayed their allies and attempted to destroy all races that used Protoculture as a power source as seen in Robotech: The Shadow Chronicles.
Some humans collaborated with the Invid in exchange for power and/or protection and helped hunt down those who resisted or helped with the harvesting and management of Protoculture.
He is promoted to the rank of Commander in Robotech: The Shadow Chronicles and is one of the most dangerous Robotech warriors in Robotech history, having defeated Corg, Prince of the Invid, in mecha combat.