A Spatial Connectivity Approach to Landscapes of Conflict: Julius Caesar and the Assault to Puig Ciutat (NE Iberian Peninsula)

Landscape plays a vital role in the development of military campaigns through the definition of geostrategic landmarks that structure the control of the territory, the imposition of constraints to the movement of armies and the identification of features that facilitate defence against attackers. These factors are linked to the study of past spatial mobility which is typically done by finding optimal pathways between pairs of points using Least-Cost Path analysis. This emphasis on optimality may not be ideal for case studies that need a general approach to spatial connectivity such as the study of conflict-related dynamics. Connectivity modelling based on Circuit Theory (CT) is an alternative approach to spatial mobility that captures the connectivity of an entire region identifying not only optimal paths but also bottlenecks, dead-ends and any other spatial feature that may impact movement. We present here a framework to study landscapes of conflict using connectivity modelling; the framework combines CT, visibility analysis and statistical hypothesis testing to understand the reasons behind the assault and destruction of Puig Ciutat (NE Iberian Peninsula) during Julius Caesar’s civil war. Results suggest that the site exerted decisive control over a highly connected area linking two possible logistical bases (Emporion and Massalia) to the armies fighting at Ilerda (49 BC).