Chatham House

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Chatham House

The Royal Institute of International Affairs
Entrance to Chatham House in 2012
Established	1920; 104 years ago (1920)
Headquarters	10 St James's Square London, England
Membership	6,000 (approx.)
Website	chathamhouse.org
Formerly called	The British Institute of International Affairs

The Royal Institute of International Affairs, commonly known as Chatham House, is a British think tank based in London, England. Its stated mission is "to help governments and societies build a sustainably secure, prosperous, and just world". It is the originator of the Chatham House Rule.