Kammala wannan jumla: A ranar 13 ga Nuwamba, 1918,
An mamaye Constantinople (Istanbul na yanzu), babban birnin Daular Ottoman, lokacin da sojojin Faransa suka isa, sannan sojojin Burtaniya suka biyo baya washegari. Aiki yana da matakai biyu: matakin "de facto" daga 13 ga Nuwamba 1918 zuwa 20 ga Maris 1920, da kuma "de jure" daga de facto zuwa kwanaki bayan Yarjejeniyar Lausanne. Mamayar Istanbul, tare da mamayar İzmir, ya ba da gudummawa ga kafa ƙungiyar ƙasa ta Turkiyya kuma ya haifar da Yaƙin 'Yancin Turkiyya.