Liao gave Giving Goryeo permission to incorporate Cause_to_amalgamate the land between the border of Liao and that of Goryeo , which was occupied Control by Jurchen tribes that were troublesome to Liao , up to the Yalu River .

The Jin–Song Wars were a series of conflicts Hostile_encounter between the Jurchen Jin dynasty ( 1115–1234 ) and Han Chinese Song dynasty ( 960–1279 ) .

In 1115 , Jurchen tribes rebelled Change_of_leadership against their overlords , the Khitan Liao dynasty ( 907–1125 ) , and declared Expressing_publicly the formation of the Jin .

Jurchen migrants settled in the conquered Conquering territories and assimilated Cause_to_amalgamate with the local culture .