McMahon's promises are seen by Arab nationalists as a pledge of immediate Arab independence, an undertaking violated by the region's subsequent partition into British and French League of Nations mandates under the secret Sykes-Picot Agreement of May 1916. Particular controversy surrounds the position of Palestine, which McMahon later claimed was excluded from the discussions, and where Britain promised to favour the creation of a Jewish national home in the Balfour Declaration of November 1917.