Sykes–Picot Agreement
The agreement was exposed in December 1917; it was made public by the Bolsheviks after the Russian Revolution, showing the countries were planning to split and occupy parts of the promised Arab country. Hussein was satisfied by two disingenuous telegrams from Sir Reginald Wingate, who had replaced McMahon as High Commissioner of Egypt, assuring him the British commitments to the Arabs were still valid and that the Sykes–Picot Agreement was not a formal treaty.