Septimius Severus enlarged a province that was already huge. He then proceeded to enlarge the empire, through the conquest of Mesopotamia. The transfer of the Leja' and Jebel Drūz seemed to have been part of a shrewd series of political acts on the emperor's part to consolidate control of the area before this conquest. Arabia became the ideological power base for Septemius Severus in the Roman Near East.