The Bolsheviks are seeking to completely discredit the pre-revolutionary regime and its secret agreements with the Allies. Trotsky has overseen the publication of these covert pacts within Russia, including both the agreement to cede Constantinople to Russia and the Sykes-Picot agreement carving up the Middle East between Britain and France. These are now beginning to be reported on outside Russia, with the Manchester Guardian revealing the Sykes-Picot agreement to the English-speaking world today.
Sykes-Picot’s publication is deeply embarrassing to the Allies, as it reveals a duplicity at the heart of Anglo-French plans for the Middle East. Sharif Hussein of Mecca is leading an Arab Revolt against Turkey, having been led to believe by the British that they supported the establishment of an Arab state stretching from Syria to the Arabian peninsula. Balfour’s recent declaration of British support for the creation of a Jewish homeland in Palestine has already dented the credibility of British guarantees to the Arabs; with the British and French now revealed to be intent on dividing the Middle East between them, Sharif Hussein looks like he has been taken for a ride.
The Manchester Guardian reveals the secret treaties (Wikipedia: Sykes–Picot Agreement)