Royal United Services Institute
British defence and security think tank
The Royal United Services Institute (RUSI or Rusi) is the world's oldest defence and security think tank, founded in 1831 by the first Duke of Wellington, based in Whitehall, London, United Kingdom. The institution was registered as Royal United Service Institute for Defence and Security Studies and formerly known as the Royal United Services Institute for Defence Studies. The current chair of RUSI is the ninth Duke of Wellington and its director-general is Rachel Ellehuus.
History
RUSI was founded in 1831, making it the oldest defence and security think tank in the world, at the initiative of the Duke of Wellington. Its original objective was to study naval and military science.
The Duke of Wellington spearheaded the establishment of RUSI in a letter to Colbourn's United Service Journal arguing that "a United Service Museum" should be formed, managed entirely by naval and military officers, and under patronage of the monarch, then King George IV, and the commanders-in-chief of the armed forces. Such an institution would prove that the two professions have entered the lists of science, and are ready to contend for honours tam Artibus quam Armis ('as much through the arts as through weapons'). The first curator of the museum was Captain Boughey Burgess who also served as secretary following the death of L. H. J. Tonna in 1857.
Subsequently, Commander Henry Downes, Royal Navy, assembled a group with a view to forming a committee for action, to which King George's First ADC was commanded to convey "His Majesty's gracious and high approbation of the undertaking and of the principles on which it is proposed to conduct it", which were stated to be suitable for "a strictly scientific and professional society, and not a club". The death of the King delayed matters, but the Duke of Clarence expressed his readiness to become a patron so, encouraged by the powerful support of the Duke of Wellington, the First Aide-de-camp, Sir Herbert Taylor, re-submitted the project to William IV (the former Duke of Clarence), and was able to assure the committee that "it could proceed under his Majesty's gracious auspices".
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The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Sep 8, 2026. The linked authority identifier is Q1464767. VIAF identifies the subject as 156922827. The Library of Congress control number is nr2004003718. Authority coordinates are 51.504, -0.126. 3 of 6 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1831 and 1857.
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This entry incorporates text from “Royal United Services Institute” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.