This book provides a comprehensive assessment of the various dimensions of the relationship between the European Union and the Gulf Cooperation Council, and highlights how relations are yet to reach their full potential. Despite both parties sharing a number of common interests, including trade, energy, climate change, security and cultural cooperation, the multilateral cooperation framework remains limited, with most engagement taking place bilaterally, between individual European and GCC countries. The book reassesses the potential and prospects for the EU’s engagement with GCC countries based on the recalibration and reconciliation of both parties’ national and regional interests. Taking a thematic approach, each of the three sections of the book examines a key dimension of the relationship, its current status and its path forward.