[Ah right. She's kind of doing word vomit right now and half expecting her to know that those mean. This was not Etheirys, after all.]

Essentially yes. Every few years, a new leader is appointed power while the other tribes in the area follow. Although, the way they're appointed is not a democratic process, but through a show of skill.

They host an event, called the Naadam, where the different tribes fight one another for the control of a central point. The rules are simple. Whoever claims it becomes the tribe in charge until the next Naadam.