Ottoman Empire
Several historians such as British historian Edward Gibbon and the Greek historian Dimitri Kitzikis have argued that after the fall of Constantinople, the Ottoman state took over the machinery of the Roman state, and that in essence the Ottoman Empire was a continuation of the Eastern Roman Empire under a thin Turkish Islamic guise. Kitzikis called the Ottoman state "a Greek-Turkish condominium". The American historian Speros Vryonis wrote that the Ottoman state was centered on "a Byzantine-Balkan base with a veneer of the Turkish language and the Islamic religion". Other historians have followed the lead of the Austrian historian Paul Wittek who emphasized the Islamic character of the Ottoman state, seeing the Ottoman state as a "Jihad state" dedicated to expanding the world of Islam. Another group of historians led by the Turkish historian M. Fuat Koprulu championed the ""gazi" thesis" that saw the Ottoman state as a continuation of the way of life of the nomadic Turkic tribes who had come from East Asia to Anatolia via Central Asia and the Middle East on a much larger scale, and argued that the most important cultural influences on the Ottoman state came from Persia. More recently, the American historian Heath Lowry called the Ottoman state a "predatory confederacy" led in equal parts by Turks and Greeks converted to Islam.
Hamidiye (cavalry)
Abdul Hamid II's reign has the reputation of being "the most despotic and centralized era in modern Ottoman History." Abdul Hamid is also considered the last sultan to have full control over Ottoman Empire. His reign struggled with the culmination of 75 years of change throughout the empire and an opposing reaction to that change. Abdul Hamid II was particularly concerned with the centralization of the empire. His efforts to centralize the Sublime Porte were not unheard of among other sultans. The Ottoman Empire's local provinces had more control over their areas than the central government. Abdul Hamid II's foreign relations came from a "policy of non-commitment." The sultan understood the fragility of the Ottoman military, and the Empire's weaknesses of its domestic control. Pan-Islamism became Abdülhamid's solution to the empire's loss of identity and power. His efforts to promote Pan-Islamism were for the most part unsuccessful because of the large non-Muslim population, and the European influence onto the empire. Abdul Hamid II's policies essentially isolated the Ottoman Empire, which further aided in its decline. Several of the elite who sought a new constitution and reform for the empire were forced to flee to Europe. After the Treaty of Berlin (1878), the Ottoman Empire began to contract and it lost certain territories. New groups of radicals began to threaten the power of the Ottoman Empire.