This chapter traces the origins and the entry of Middle East states into the international system after the First World War. The modern states of the Arab Middle East emerged from the collapse of the Ottoman Empire and the post-First World War settlement. The fall of the Ottoman Empire left the Turks and Arabs ready for statehood, although unprepared for dealing with the international system. Indeed, the Palestine crisis brought to light Arab weaknesses in the international arena and in regional affairs that were a legacy of the way in which the colonial powers shaped the emergence of the modern Middle East. Ultimately, the emergence of the state system in the Middle East is a history both of the creation of stable states and of destabilizing conflicts.