Deep Dwarf Rush
A Kal Thane is elected from amongst the Thanes. The position is generally for life and no Kal Thane has ever been deposed. Some abdicate or are compelled to leave the post due to incompetence or corruption but rarely have these types of issues ever been publically verified. Rumors are a problem even the prudent dwarves face, however.
As the head of state, the Kal Thane makes policy decisions on behalf of all Ruudigard deeps as well as acting as the leader of all armies. It is only under the Kal Thane’s authority that troops may be dispatched outside of dwarven territory or that the full strength of Ruudigard can be mustered.