Decline and modernization of the Ottoman Empire
Beginning from the late eighteenth century, the Ottoman Empire faced challenges defending itself against foreign invasion and occupation. In response to foreign threats, the empire initiated a period of tremendous internal reform which came to be known as the Tanzimat, which succeeded in significantly strengthening the Ottoman central state, despite the empire's precarious international position. Over the course of the nineteenth century, the Ottoman state became increasingly powerful and rationalized, exercising a greater degree of influence over its population than in any previous era. The process of reform and modernization in the empire began with the declaration of the Nizam-ı Cedid (New Order) during the reign of Sultan Selim III and was punctuated by several reform decrees, such as the Hatt-ı Şerif of Gülhane in 1839 and the Hatt-ı Hümayun in 1856. At the end of this period, marked with 1908, to a degree the Ottoman military became modernized and professionalized according to the model of Western European Armies. The period was followed by the defeat and dissolution of the Ottoman Empire (1908–1922).
Turkish people
Turks arrived from Central Asia and settled in the Anatolian basin in around the 11th century through the conquest of Seljuk Turks, mixing with the peoples of Anatolia. The region then began to transform from a predominately Greek Christian one to a Turkish Muslim society. Thereafter, the Ottoman Empire came to rule much of the Balkans, the Caucasus, the Middle East (excluding Iran), and North Africa over the course of several centuries, with an advanced army and navy. The Empire lasted until the end of the First World War, when it was defeated by the Allies and partitioned. Following the successful Turkish War of Independence that ended with the Turkish national movement retaking most of the land lost to the Allies, the movement abolished the Ottoman sultanate on 1 November 1922 and proclaimed the Republic of Turkey on 29 October 1923. Not all Ottomans were Muslims and not all Ottoman Muslims were Turks, but by 1923, the majority of people living within the borders of the new Turkish republic identified as Turks.