The Mandate for Syria and the Lebanon (French: Mandat pour la Syrie et le Liban; Arabic: الانتداب الفرنسي على سوريا ولبنان, romanized: al-intidāb al-faransī ʻalā sūriyā wa-lubnān, also referred to as the Levant States; 1923−1946) was a League of Nations mandate founded in the aftermath of the First World War and the partitioning of the Ottoman Empire, concerning the territories of Syria and Lebanon. The mandate system was supposed to differ from colonialism, with the governing country intended to act as a trustee until the inhabitants were considered eligible for self-government. At that point, the mandate would terminate and a sovereign state would be born.
During the two years that followed the end of the war in 1918—and in accordance with the Sykes–Picot Agreement signed by the United Kingdom and France during the war—the British held control of most of Ottoman Iraq (now Iraq) and the southern part of Ottoman Syria (now Israel, Palestine and Transjordan), while the French controlled the rest of Ottoman Syria (including Lebanon, Alexandretta, and portions of Cilicia). In the early 1920s, British and French control of these territories became formalized by the League of Nations' mandate system. And on 29 September 1923 France was assigned the League of Nations mandate of Syria, which included the territory of present-day Lebanon and Alexandretta in addition to modern Syria. The League of Nations monitored the mandates through the Permanent Mandates Commission (PMC). The PMC allowed other states to voice their thoughts on the management of the mandates, such as in economic matters.