Which state was formed from the dissolution of the Ottoman Empire post World War I?

The state formed from the dissolution of the Ottoman Empire after World War I is Turkey. Following the end of the war and the subsequent collapse of the Ottoman Empire, the territory was redefined, and the Republic of Turkey emerged in 1923 under the leadership of Mustafa Kemal Atatürk. This transformation marked a significant shift in governance and national identity, transitioning from the imperial structure of the Ottoman system to a modern secular nation-state.

Greece, while it was involved in the post-war territorial changes and gained regions once under Ottoman control, did not emerge as a successor state to the Ottoman Empire. It was an existing nation-state that expanded its territory. Iran, known as Persia until 1935, maintained its sovereignty throughout this period and was never part of the Ottoman Empire. Saudi Arabia was formed through the unification of various tribal regions, but it was not a direct result of the Ottoman dissolution. Thus, Turkey stands out as the primary successor state directly stemming from the disintegration of the Ottoman Empire.