The Kumo Xi and the Khitans were united in a tribal Kumo Xi entity until 388 AD, when the previously defeated Kumo Xi leaders insisted on fighting against with the proto-Mongolic Northern Wei dynasty.
The Kumo Xi were united in a tribal Kumo Xi entity until 388 AD. The Khitans were united in a tribal Kumo Xi entity until 388 AD. The previously defeated Kumo Xi leaders insisted on fighting against with the proto-Mongolic Northern Wei dynasty.