Complex sentence: After the war Gouraud served from 1919 to 1923 as representative of the French Government in the middle east where he presided over the creation of the state of Lebanon on september 1st 1920, and led the occupation of Syria.
Split into simpler sentences: After the war, Gouraud served from 1919 to 1923 as representative of the French Government in the Middle East. During this time he presided over the creation of the state of Lebanon on September 1 1920, and led the occupation of Syria.