Introduction: The Geometry of a Wartime Alliance In July 1915, a courier traveling from Mecca arrived at the British residency in Cairo carrying a letter addressed to the High Commissioner, Sir Henry McMahon. The letter was signed by Hussein bin Ali, the Sharif of Mecca and the Emir of the Hejaz. It contained a proposal … Continue reading Promises in the Desert: The McMahon-Hussein Correspondence and the Betrayal of the Arab Revolt