David Mitrany

David Mitrany was a Romanian-born scholar who later became a British citizen, and he built a reputation as a historian, political theorist, and analyst of international affairs. He studied at the London School of Economics, and his papers are now held by the LSE, reflecting a long career focused on politics, diplomacy, and the problems of cooperation between states.

He is most closely associated with functionalism in international relations: the idea that countries can build trust by working together on practical tasks such as social, economic, scientific, and humanitarian problems. During the Second World War he worked with the British Foreign Office's academic intelligence unit, and his 1943 pamphlet A Working Peace System brought his ideas to a wider audience.

Mitrany was also the first professor appointed in the School of Economics and Politics at the Institute for Advanced Study in Princeton. Though he is often remembered for a single theory, his writing was driven by a broader question that still feels current: how to create forms of international cooperation strong enough to support peace without demanding that states give up everything that makes them independent.