The "Annals of Fulda" never refers to the Moravian monarchs as rulers of a state, but as heads of a people - "dux Maravorum" ("duke of the Moravians"). Accordingly, Macháček writes that "Great Moravia was not primarily organized on a territorial basis [...], but more likely on the foundation of real or fictitious kinship bonds within the tribal structure". On the other hand, Havlík says that Moravia was divided into counties each headed by "rich, honourable and well-born noblemen" whom he styles as "zhupans"; he even adds that the number of counties increased from 11 to 30 by the second half of the 9th century. Štefan adds that the existence of scattered groups of farmer warriors, which is suggested by archaeological research, implies the existence of administrative territorial units, because without such a system the monarchs could not organize their campaigns.