Military democracy and how does it differ from primitiveness and from an established state with a central government?

In the primitive system, the clan community dominates, headed by the elder of the clan, there are still no divisions into tribes, each clan lives by itself.

Military democracy differs from the primitive system, as it is the alliances of tribes headed by elected leaders from among the warriors or elders of the tribe.

Unlike the state, these tribal associations are not very stable and often disintegrate, are created only for the purpose of a joint military campaign, do not have a clearly defined administrative apparatus and centralized leadership.