Abstract: | The centrality of the Reconquista in the historiography of medieval Spain has meant that there has been little examination of the evidence for interaction on and across political boundaries in pre‐Islamic Spain. This article re‐examines existing theories about the defence of the Byzantine province of Spania that had been established by Justinian in the 550s and was taken by the Visigoths in 625. The two existing and opposing models for the extent, defence, and – therefore – the importance of the province to the empire do not explain the evidence convincingly. Rather, a fluid zone of interaction was established in which diplomacy and ‘propaganda’ was the primary means by which opposition was articulated. |