In the farce from the fortress, in the valley of Kum, the battle of the Sogdians with the Arabs took place, after which Divashtich, the best-known ruler of Sogdian principality, fell and surrendered in 722. Excavations of the larger part of the Kum settlement, combined with written data obtained in the castle on Mount Mug (six kilometers away), allow to describe more accurately the historical situation and the heroic confrontation of the population of the mountain Sogdiana. Kum represents the town planning and fortifications along the Silk Roads as well as Sogdian palatial structures of petty rulers, who were engaged in the Silk Road trade. It is also an example of outstanding human activity in unfavorable mountain environment and bear witness to Islamization of the area, through archaeological materials. The well-preserved fortifications and architecture of Kum and its historical significance is pivotal for the nomination.