Nyorai kuenderera mberi kweiyi ndima - Mukupera kwezana ramakore rechi9, Silla yakakamurwa kuva Humambo Hwevatatu Hwekupedzisira (892<unk>936), hwakaguma nekubatanidzwa neimba yaWang Geon yeGoryeo. Zvichakadaro, Balhae yakawa mushure mekupinda neKhitan Liao dzinza uye vapoteri kusanganisira wekupedzisira korona muchinda vakatamira kuGoryeo, uko korona muchinda akagamuchirwa noushamwari uye akaverengerwa mumhuri inotonga naWang Geon, nekudaro achibatanidza nyika mbiri dzinomutevera dzeGoguryeo. Munguva yaGoryeo, mitemo yakanyorwa, hurongwa hwevashandi vehurumende hwakatangwa, uye tsika yaikurudzirwa nechiBuddha yakabudirira. Zvisinei, kupinda kwevaMongol
muzana ramakore rechi13 rakaunza Goryeo pasi pesimba raro kusvikira pakati pezana ramakore rechi14.