The Allied occupation of the Rhineland was coming to an end, and de Gaulle's battalion was due to be disbanded, although the decision was later rescinded after he had moved to his next posting. De Gaulle wanted a teaching post at the "École de Guerre" in 1929. There was apparently a threat of mass resignation of the faculty were he appointed to a position there. There was talk of a posting to Corsica or North Africa, but on Pétain's advice he accepted a two-year posting to Lebanon and Syria. In Beirut he was chief of the 3rd Bureau (military operations) of General Louis-Paul-Gaston de Bigault du Granrut, who wrote him a glowing reference recommending him for high command in the future.