The Royal United Services Institute (RUSI) is the world’s oldest and the UK’s leading defence and security think tank. Our mission is to inform, influence and enhance public debate to help build a …

RUSI publications offer rigorous, timely and policy-relevant analysis of UK and international defence and security issues. Leading thinkers and practitioners contribute to RUSI's authoritative periodicals, …

RUSI publications offer rigorous, timely and policy-relevant analysis of UK and international defence and security issues. Leading thinkers and practitioners contribute to RUSI's authoritative periodicals, …

Nov 4, 2025 · Read about His Majesty The King's first visit to RUSI in celebration of His Royal Highness The Duke of Kent’s 90th birthday and half century of service as RUSI's president

RUSI embodies nearly two centuries of forward thinking, free discussion, and careful reflection on defence, security and geopolitics. Find out more about our thought leadership and convening power.

4 days ago · RUSI has followed this confrontation from the start; the collection here brings together all our contributions from different perspectives and angles and across other intellectual disciplines, …

RUSI NextGen Counter Terrorism Discussion & Festive Networking Join the NextGen Community for our last event of 2025! The panel will discuss their experiences in the world of counter terrorism.

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The Royal United Services Institute (RUSI) is an independent think tank engaged in cutting-edge research on defence, security and international affairs.

Oct 8, 2025 · RUSI's mission and values are underpinned by the ambition to build a more secure, equitable and stable world.