The French mandate of Lebanon was a League of Nations mandate created at the end of World War I. When the Ottoman Empire was split by the Treaty of Versailles in 1919, it was decided that four of its territories in the Middle East should be League of Nations mandates temporarily governed by United Kingdom and France on behalf of the League. The British were made in charge of Palestine and Iraq, while the French was given the mandates of Lebanon and Syria. Lebanon gained its independence in 1943 and the French left the country in 1945.

League of Nations Mandates | History of Lebanon