World War I, 1914–18
The Ottoman entry into World War I resulted from an overly hasty calculation of likely advantage. German influence was strong but not decisive; Germany’s trade with the Ottomans still lagged behind that of Britain, France, and Austria, and its investments, which included the Baghdad railway, were smaller than those of France. A mission to Turkey led by the German military officer Otto Liman von Sanders in 1913 was only one of a series of German military missions, and Liman’s authority to control the Ottoman army was much more limited than contemporaries supposed. Except for the interest of Russia in Istanbul and the Straits, no European power had genuinely vital interests in the Ottoman Empire. The Ottomans might have remained neutral, as a majority of the cabinet wished, at least until the situation became clearer. But the opportunism of the minister of war Enver Paşa, early German victories, friction with the Triple Entente (France, Russia, and Great Britain) arising out of the shelter given by the Ottomans to German warships, and long-standing hostility to Russia combined to produce an Ottoman bombardment of the Russian Black Sea ports (October 29, 1914) and a declaration of war by the Entente against the Ottoman Empire.
The Ottomans made a substantial contribution to the Central Powers’ war effort. Their forces fought in eastern Asia Minor, Azerbaijan, Mesopotamia, Syria and Palestine, and the Dardanelles, as well as on European fronts, and they held down large numbers of Entente troops. In September 1918 they dominated Transcaucasia. During the war the Young Turks also took the opportunity to attack certain internal problems—the Capitulations were abolished unilaterally (September 1914), the autonomous status of Lebanon was ended, a number of Arab nationalists were executed in Damascus (August 1915 and May 1916), and the Armenian community in eastern Asia Minor and Cilicia was massacred or deported to eliminate any domestic support for the pro-Christian tsarist enemy on the Eastern Front. Possibly 600,000 Armenians were killed, principally by Kurdish irregulars.
After 1916, army desertions took place on a massive scale, and economic pressures became acute. The surrender of Bulgaria (September 28, 1918), which severed direct links with Germany, was the final blow. The CUP cabinet resigned on October 7, and a new government was formed under Ahmed Izzet Paşa on October 9. On October 30 the Ottomans signed the Armistice of Mudros.