16世纪末，厄鲁特蒙古四部中的准噶尔部逐渐强大，至17世纪下半叶，发展为一支控制天山南北，威胁青海、西藏的强大的割据势力。清康熙年间，准部首领噶尔丹在沙俄的怂恿和支持下向喀尔喀蒙古进攻，同时，以出卖中国领土为条件换取沙俄军队的支持。清政府对噶尔丹的叛乱早有觉 At the end of the 16th century, the Junggar department in the four parts of Elut Mongolia gradually became powerful. By the second half of the 17th century, it developed into a powerful separatist force that controls both north and south of Tianshan and threatens Qinghai and Tibet. During the reign of the Qing Emperor Kangxi, the al-Qaeda leader Galdan attacked Khalkha in the tsarist Russia with the encouragement and support of Tsarist Russia. At the same time, he exchanged the support of the Tsarist Russia army for the betrayal of the Chinese territory. The Qing government had long felt the rebellion against Galdan