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Conclusion of World War I

In the summer months of 1918, the leaders of the Central Powers realized that the Great War was lost, including the Ottomans'. Almost simultaneously the Palestinian Front and then the Macedonian Front collapsed. The sudden decision by Bulgaria to sign an armistice cut communications from Constantinople (İstanbul) to Vienna and Berlin, and opened the undefended Ottoman capital to Entente attack. With the major fronts crumbling, Unionist Grand Vizier Talât Pasha intended to sign an armistice, and resigned on 8 October 1918 so that a new government would receive less harsh armistice terms. The Armistice of Mudros was signed on 30 October 1918, ending World War I for the Ottoman Empire. Three days later, the Committee of Union and Progress (CUP)—which governed the Ottoman Empire as a one-party state since 1913 —held its last congress, where it was decided the party would be dissolved. Talât, Enver Pasha, Cemal Pasha, and five other high-ranking members of the CUP escaped the Ottoman Empire on a German torpedo boat later that night, plunging the country into a power vacuum.

The armistice was signed because the Ottoman Empire had been defeated in important fronts, but the military was intact and retreated in good order. Unlike other Central Powers, the Allies did not mandate an abdication of the imperial family as a condition for peace, nor did they request the Ottoman Army to dissolve its general staff. Though the army suffered from mass desertion throughout the war which led to banditry, there was no threat of mutiny or revolutions like in Germany, Austria-Hungary, or Russia. This is despite famine and economic collapse that was brought on by the extreme levels of mobilization, destruction from the war, disease, and mass murder since 1914.

Due to the Turkish nationalist policies pursued by the CUP against Ottoman Christians by 1918 the Ottoman Empire held control over a mostly homogeneous land of Muslims from eastern Thrace to the Persian border. These included mostly Turks, as well as Kurds, Circassians, and Muhacir groups from Rumeli. Most Muslim Arabs were now outside of the Ottoman Empire and under Allied occupation, with some "imperialists" still loyal to the Ottoman Sultanate-Caliphate, and others wishing for independence or Allied protection under a League of Nations mandate. Sizable Greek and Armenian minorities remained within its borders, and most of these communities no longer wished to remain under the Empire.