フランス委任統治領シリア
At the outbreak of war, he went to Cairo where he maintained good relations with the Maronites of Lebanon. In the spring of 1915 he was recalled to Paris by the Ministry of Foreign Affairs and International Development. As a member of the French Colonial Party he was an advocate for those who supported a French Mandate for Syria and the Lebanon in the Sykes-Picot Agreement, desiring an "integral Syria" from Alexandretta in present-day Turkey to Sinai, and from Mosul to the Mediterranean coast.