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Which country became the immediate successor to the Ottoman Empire after World War I?
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Ottoman Empire
Map showing the expansion of the Ottoman Empire from about 1300 to 1700. The empire reached its greatest extent between 1683 and 1699.
The country that became the immediate successor to the Ottoman Empire following World War I is Turkey.1
Following the empire's defeat and the subsequent Turkish War of Independence, the Treaty of Lausanne, signed on July 24, 1923, formally recognized the modern state of Turkey as the successor to the Ottoman Empire. Shortly thereafter, on October 29, 1923, the Turkish assembly officially declared the nation a republic and elected Mustafa Kemal as its first president.12