Abstract
The article considers the fact that the Seljuk state was founded by the Oghuz Seljuks, as well as the internal social policy of the Seljuk empire as a prerequisite for a crisis in the country (late XI and early XII centuries). The Seljuks combined the fragmented political landscape of the eastern Islamic world and played a key role in first and second crusades. Strongly Persianized in culture and language, the Seljuks also played an important role in the development of the Turkic-Persian tradition, even exporting Persian culture to Anatolia. The resettlement of Turkic tribes in the northwestern peripheral parts of the empire with the military strategic goal of repelling the invasions of neighboring states led to the gradual Turkization of these territories. Sultans handed out nobles and ordinary warriors to the nobility - ikta, which made it possible for the sultan to maintain power. At the end of the XI century, large conquests ended, bringing the nobility new lands and military booty, which led to a change in the political situation in the country. Know began to strive to turn their possessions into legally hereditary, and their power over the Rayyats - into unlimited; the owners of large Lenas raised rebellions, seeking independence (Khorezm in the 1st half of the XII century). To provide the army with land (ICT), wages, gifts, food, weapons, uniforms, medicines, the Sultan's government went to any expense. The widespread use of ICT in the army has allowed the creation of a stable mercenary army, specializing in the change of people's squads