We are the Centre for International Security and Defence Studies (CISDS) - the first progressive defence and security think tank in the UK. We believe that protecting democracy, supporting allies, and preparing for future threats requires fresh thinking rooted in cooperation, resilience, and sustainability.

Championing values-based decision-making, we provide cutting edge research to industry, civil society, and policymakers with a holistic strategy, emphasising the importance of a whole society approach to defence and security. Our work is grounded in a commitment to NATO, solidarity with Ukraine, and the conviction that security policy must serve democratic values and human dignity. Through rigorous research, open dialogue, and practical policy solutions, CISDS aims to strengthen Britain’s role in building a safer, more resilient, and more just international order.