Soon, however, they had the skill to avail themselves of these disagreements to sell their services as soldiers to the highest bidders; and although they were not equal to the Kipchak tribes in valour, their alliance was considered of importance, and on many a dubious occasion sufficed to turn the fortune of the day. By such measures of policy their existence has been preserved, and at the present time they perform much the same functions, and are regarded in much the same manner by their neighbours, as in the past. The Kipchaks, another great tribe, who however are scarcely represented at all in Kashgaria, pride themselves on being the most select of all the Usbegs, but their day of power has passed by, for the present at all events. Thirty years ago they were at the height of their success, but they incurred the jealousy of other Usbeg tribes and of the Kirghiz. Owing to the abilities of their great chief, Mussulman Kuli, they succeeded in erecting in Khokand a powerful state, which was able to restrain the encroachments of Bokhara, at that time the great enemy of the former Khanate. But the plots that broke out against them in 1853, in conjunction with the advance of Russia on the Syr Darya, were crowned with success, and with the execution of Mussulman Kuli the Kipchak power was completely broken. Since that date, however, several of the more distinguished leaders who have appeared on the scene, such as Alim Kuli and Abdurrahman Aftobatcha, have been members of this clan. The eastern portion of the dominion of Yakoob Beg is almost exclusively inhabited by Calmucks, or tribes of Calmuck descent. The great majority of the inhabitants of Manchuria and Jungaria are of Calmuck descent, and even in Russia in Europe there are many settlements of this tribe along the Volga and the Don. None of these, however, possess any political importance except those who inhabit the country north of Gobi and between Eastern Turkestan and China, and the chief of these are the Khalkas. The Calmucks are attached by old associations to the Government of Pekin; and, although they have sometimes revolted against, and often caused trouble to, the Central Government, they have generally acknowledged their culpability and submitted to the Chinese authorities. In the revolt of the Tungani the Calmucks remained true to China, and performed very opportune service on various occasions. The Chinese army in Eastern Turkestan was mainly recruited from among these tribes, who became distinguished from the Tungani by their religion and fidelity.