In the days of the Ottoman Empire, British diplomats referred to the Arabic-speaking territories of the empire as “Turkish Arabia.” It was these Arabic-speaking lands that Britain and France, in the aftermath of the First World War, divided into the modern Arab states we know today: Syria, Iraq, Jordan, and Lebanon. Those arbitrary colonial boundaries have endured for the better part of a century, but the people within them have never fully acknowledged the legitimacy of the lines that British and French officials drew for them.