Chapter 7 seeks to chart the way in which organisations and individuals are connected within cross-border policy networks in West Africa. One of the major challenges for cross-border co-operation is successfully managing to establish principles and pursue initiatives which transcend specific national characteristics. In doing so, cross-border co-operation brings together organisations with very different objectives and individuals with very different profiles, who must nevertheless work together and achieve mutually acceptable consensuses. Based on the results of a field survey carried out across the West African region, and in the areas of the Senegal River valley, Liptako-Gourma, and the Lake Chad region in particular, the report highlights the actors involved in cross-border co-operation, their formal and informal relationships, the structural constraints limiting their exchanges of information and power, and the impact of national borders on the regional construction process.