The Mavvan Conflict was a battle between the Galactic Empire and an early Rebel group between 19 BBY and 15 BBY. During the conflict, the Empire used the toxic Rooze Disease germ against the rebels. Although it devastated the Rebels, it killed an equal amount of Imperials. Most likely because they were immune to the germ, the Kobok became involved in the battle. Their earlier skirmishes against the Corporate Alliance prepared the insectoids for this new conflict. The Koboth Insurgent Mantle was an award given to Koboks who had served with distinction during the conflict.