After the Ottoman government collapsed completely, its representatives signed the Treaty of Sèvres in 1920, which would have partitioned much of the territory of present-day Turkey among France, the United Kingdom, Greece and Italy. The Turkish War of Independence forced the Western European powers to return to the negotiating table before the treaty could be ratified. The Western Europeans and the Grand National Assembly of Turkey signed and ratified the new Treaty of Lausanne in 1923, superseding the Treaty of Sèvres and agreeing on most of the territorial issues. One unresolved issue, the dispute between the Kingdom of Iraq and the Republic of Turkey over the former province of Mosul, was later negotiated under the auspices of the League of Nations in 1926. The British and French partitioned Greater Syria between them in the Sykes-Picot Agreement. Other secret agreements were concluded with Italy and Russia. The Balfour Declaration encouraged the international Zionist movement to push for a Jewish homeland in Palestine. While a part of the Triple Entente, Russia also had wartime agreements preventing it from participating in the partitioning of the Ottoman Empire after the Russian Revolution. The Treaty of Sèvres formally acknowledged the new League of Nations mandates in the region, the independence of Yemen, and British sovereignty over Cyprus.