During the two years that followed the end of the war in 1918 -- and in accordance with the Sykes - Picot Agreement signed by Britain and France during the war -- the British held control of most of Ottoman Mesopotamia (modern Iraq) and the southern part of Ottoman Syria (Palestine and Transjordan), while the French controlled the rest of Ottoman Syria, Lebanon, Alexandretta (Hatay) and other portions of southeastern Turkey. 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 Syria proper.
who gave the territory of syria to a foreign nation in 1922
League of Nations League of Nations