Najd Sanjak an autonomous separate country within the empire. The sultan recognized Abdullah II Al-Sabah as the kaymakam of Kuwait as a subprovince of al-Ahsa, formally acknowledging that Kuwait was a part of the Ottoman Empire and that it was ruled by the Sabah family. In 1913 Ibn Saud launched an attack on Hofuf, where 1,200 Turkish troops had been stationed since the province's annexation in 1870. The Ottoman garrison was expelled from Hasa, and the territory fell to the Al Saud. Even after the conquest of Hasa, Britain considered Ibn Saud to be an Ottoman vassal, and the Anglo-Ottoman Convention of
Rise of the Ottoman Empire tax burden was increased, prompting criticism from writers who saw such centralization in a negative light. Of particular importance for Ottoman success was their ability to keep the empire intact from generation to generation. While other Turkic groups frequently divided their realms between the sons of a deceased ruler, the Ottomans consistently kept the empire united under a single heir. The process of centralization is closely connected with an influx of Muslim scholars from Central Anatolia, where a more urban and bureaucratic Turkish civilization had developed under the Seljuks of Rum. Particularly influential was the Çandarlı family, which supplied several