Mezue ahịrịokwu na-esonụ: Dabere na ndekọ nke "Akụkọ ihe mere eme nke Liao" (), ndị Khitans guzobere mpaghara Samhan, na Zhongjing Circuit (中京道), otu n'ime "mpaghara" 5 nke Liao, mgbe Agha Goryeo <unk> Khitan gasịrị iji dozie ndị mkpọrọ agha. N'ọchịchị Yuan, a gụnyere ndị Korea na ndị China nke Ugwu, Khitan na Jurchen na klas nke atọ, dị ka "ndị Han". Ebe obibi ndị Korea n'oge ọchịchị Yuan bụ nke metụtara agha. N'afọ 1233, onye bụbu onye ọchịagha Goryeo Hong Bok-won na ndị na-eso ụzọ ya kwagara mpaghara Liaoyang na Shenyang nke oge a nke Liaoning Province na North East China mgbe o nyefere ndị Mongol n'oge agha ndị Mongol.
Ndị Mongol wakporo Korea, e nyekwara ya ọkwa onye nchịkwa iji lekọta ndị Korea nọ ebe ahụ. N'afọ ndị sochirinụ, e webatara puku ezinụlọ Goryeo iri ọzọ n'okpuru ọchịchị ya. Na 1266, e zigara Wang Jun (), onye so n'ezinụlọ eze Goryeo, na Alaeze Ukwu Mongol dị ka onye eji eji. E nwere ezinụlọ 2,000 Goryeo so ya ma biri n'obodo Shenyang nke oge a.