In the early days of the Goryeo Dynasty, among the Dohobu(都護府) units the one in Anbuk(安北) was established to function as a central base that would oversee territory colonization in the Northwest region. It was moved from Pyeongyang to Golam-seong(鶻巖城) fortress and then to Nyeongju(寧州). In the meantime, the Anbyeon(安邊) Dohobu was established at Deungju(登州) as a center which would monitor and manage the Northeast region, which was geographically separated from the Northwest region.
Initially, Goryeo established the Dohobu units in the process of preparing itself for the Unification war. The Annam(安南) unit was established along the border with Hu-Baekje, and the Andong(安東) unit was settled along the border with Silla. Unlike the Ju(州) units, which had been established in a separated fashion and of which the number gradually increased as Ju units continued to be established, Dohobu units were established to be put in charge of a particular range of area, and oversee that area's administration. Therefore the Dohobu units came to show a characteristic of moving from one location to another, when needs presented themselves. Dohobu units also had the effect of replacing the Jiju Jegun-sa(知州諸軍事) system, which was operated during the Unification war period.
After the unification of the late Three dynasties was complete, the administration of the Southern areas of the Korean Peninsula was put under the jurisdiction of the Andong Dohobu and Annam Dohobu units, which both served as regional centers. Both those Dohobu units not only served as military headquarters, but also wide-range overseers(檢覈) which had the responsibility of checking the administrative affairs conducted by the Local Gwanban Officials(在地官班).