After the outbreak of war in the summer of 1914, the Allies – Britain, France and Russia – had much discussion about the future of the Ottoman Empire, which is now fighting on the side of Germany and the central powers, and its vast area in the Middle East, Arabia and southern Europe. In March 1915, Britain signed a secret agreement with Russia, whose plans for the territory of the Empire had prompted the Turks to join Germany and Austria-Hungary in 1914. Under its terms, Russia would annex the Ottoman capital, Constantinople, and retain control of the Dardanelles (the extremely important strait that connects the Black Sea to the Mediterranean) and the Gallipoli Peninsula, the target of a major Allied military invasion, which began in April 1915. In exchange, Russia would accept British claims to other territories of the former Ottoman Empire and Central Persia, including the oil-rich region of Mesopotamia. On April 21, Faisal headed east. Before leaving, on 17 April Clemenceau sent a draft letter in which the French government declared that it recognized “Syria`s right to independence in the form of a federation of autonomous governments in accordance with the traditions and wishes of the population”, claiming that Fayçal had recognized “that France is called a power, Syria the necessary assistance by various advisers On 20 April , Fayçal Clemenceau assured that he was “deeply impressed by the selfless kindness of your statements while I was in Paris, and I must thank you for first proposing the sending of the Allied Commission which will soon travel to the East to identify the wishes of the local peoples regarding the future organization of their country. I am sure the Syrian people will know how to show you their gratitude.  In his doctoral thesis, Gibson discussed the role of oil in British strategic thinking at the time and referred to Vilayet Mosul as France`s largest potential oil field in 1918 to accept its accession to the mandate of Iraq (the Clemenceau Lloyd George Agreement) in exchange for “a share of oil and British aid elsewhere.”  More than a year after the agreement with Russia, British and French representatives, Sir Mark Sykes and François Georges Picot, drafted another secret agreement on the future prey of the Great War. Picot represented a small group determined to ensure control of Syria for France; For his part, Sykes asked the UK to compensate for the influence in the region.