The Allied occupation of Constantinople was the first time the city had been conquered in five centuries.  With it, the Allies demanded a partitioning of the Ottoman Empire.  The Allies subdivided the lands of modern-day Persia, Israel, and the Arabian Desert into nations too small to survive, but easy to control.  Their goal, after a millennium of off and on war with the Arab world, was to end their power to threaten the West forever.  They failed.