Group identities are fostered by two main aspects: inner cohesion and clear delineation against the outside. While in the case of Mesopotamian cities walls clearly demarcate an in- and outside for the city dwellers, Empires usually cannot use walls to draw this line. Therefore, techniques that are more sophisticated have to be developed in order to create an Imperial Identity. The king's role in expanding, defending, and marking the borders of the Empire has been studied rather well, while his significance for the inner cohesion of the Empire and the establishing of Imperial identities seems to still deserve more attention. In order to get a complete picture and to broaden our understanding of the king’s multifaceted role, all these aspects have to be studied together on different levels and by using various approaches.