The Hazarian Khanate began to lose power in the middle of the 10th century. This was, naturally, the end of the social uneasiness that came up in earlier time. The army lost more and more of his nationality and alienated because of the Hazarian that involved more in commercial works and caused a raise in paid-soldiers. Even in the middle of the 8th century an important part of the paid soldiers consisted of Muslims who came from the Harezm region and its surroundings. One of the most important reasons for the scattering of the Hazar population had been the fact that there was no language and religion unity; as a result of lost of the military power, the economical balance degenerated with the scattering of the commercial security; as the Pechenek spread out all over the country, the Kabar - in 854's which were possibly known as the years of great agitations - and later on the Hungarian and possibly the Kaliz and the Bulgarian Iskil's leaving the country, lead to a total weakening of the Khanate. The Islav's took advantage of this situation. They showed aggressive behaviour behind the trade mask. The Hazar's plundered small towns at the coasts, devastated them, killed the inhabitants (especially in the years 910, 913, 943). The maritime and river ways, once the ships cruised in peace in them, were out of security. As the Hazarian government ranks tried to prevent illegal actions, the Islav's got totally enraged. Finally Svyatosla, the Kiew Russian prince defeated the masters he was obliged in all directions, occupied the capitols and destroyed the other cities (965) with the crowded land and river forces he had founded in the Turkish manner. Even the nearby former capitol Itil, which was founded in the 12th decade in the city of "Saksin" was totally destroyed in the time of el-Biruni (1048). The Hazar's scattered. The ones who turned towards Tamatarhan and Crimea tried to carry on their community lifes. It is said that the Karachay's who live in Caucasia are relatives to the Hazar's. One of the memories of the Hazar's is the todays Caspian Sea (Hazar Sea).