The Reivers are a group of elite warriors who ride on Hauwks, having set themselves the mission of protecting Urt against great evils. They do not involve themselves in politics at all, only stepping up against things like monsters or other great evils.
The Reivers are not affiliated with any nations and are a small group compared to groups like the various nations armed forces, but their warriors are quite skilled and the Hauwks offer them great mobility.
Within the city of Duirt, the Reivers reside in Reiver Hall, their local great hall.