The Ottoman Empire had to withdraw from the war by signing the Armistice of Mudros at the end of the First World War. As a result of this armistice, which contains very hars conditions, the Entente States occupied many parts of the empire and began to deploy the Ottoman army. After that, discussions started among the Entente States about the peace treaty with the Ottoman Empire. The most imported issues in the peace negotiations process were the debate on the future of the Straits and whether Istanbul should be left to the Turks. While this issue was discussed among the Entente States at the Paris Peace Conference, it also occupied the agenda in Parliament of Great Britain. This article will analyze the decision of the British Government about the future of Istanbul and the Straits regime and the session held in Parliament of Great Britain to evaluate this decision.

Keywords: the Ottoman Empire, the First World War, Great Britain, Istanbul