Royal United Services Institute

Think TanksEngland, United Kingdom201-500 Employees

The Royal United Services Institute (RUSI) is a British think tank focused on international affairs, defence and security matters. Founded in 1831 by the Duke of Wellington, it traces a long tradition of forward thinking, open discussion, and careful reflection on strategic issues. Based in London, England, with offices in Nairobi and Brussels, RUSI maintains extensive networks inside and outside government to offer an international perspective on security challenges.

Its work targets policymakers, government and security professionals, researchers, and other stakeholders seeking objective analysis to inform decisions on global security and defence issues. RUSI is known for its quality and impartiality, and its Whitehall-adjacent location supports access to influential networks. A recent development in 2026 was the appointment of former Deputy Prime Minister Dominic Raab as a Distinguished Fellow, signaling continued engagement with prominent public figures.

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