The Trianii Rangers were the elite space force of Trian's law enforcement legion, responsible for the protection of Trianii colonies during their early establishment. They were presumably adept combatants in space, with training also in practical warfare, something the Corporate Sector Authority took note of when they encountered unnaturally stiff resistance from the sentients. During the skirmishes against the CSA, a few Trianii were captured and interrogated, and some were sent to the asteroid prison facility Stars' End before its destruction.