The lecture explores how the occupation of Istanbul post WWI came to be forgotten and is now beginning to be unevenly remembered in both Britain and Turkey a century on, exploring what this tells us about the legacy of empire in both countries.Daniel-Joseph MacArthur-Seal, PhD (Cantab), is a research fellow at the Scuola Superiore Meridionale in Napoli, Italy, where he is investigating the history of the Istanbul opium trade during the age of prohibition. His doctoral thesis examined the role of the British military in the administration of urban centres occupied during the course of the First World War in the Eastern Mediterranean, most importantly the city of Istanbul, and was subsequently published under the title Britain’s Levantine Empire, 1914-1923 (Oxford University Press, 2021).