Rubuta ci gaba don wannan sakin layi - A karni na 13, shugaban Mongol Genghis Khan, wanda ya kasance mai mulkin Jurchens, ya tashi a kan daular Jin. A cikin mamayar Mongol da ya biyo baya na daular Jin
, masu mamaye baƙi sun guji kai hare-hare kai tsaye kan sansanin Jin. Maimakon haka, lokacin da za su iya, 'yan Mongol kawai suna zagaya ganuwar; misali mai kyau na wannan dabarar shine a cikin 1211, lokacin da suka kewaye sansanin soja a Zhangjiakou kuma suka yi mummunan rauni a kan sojojin Jin a yakin Yehuling. Mongols kuma sun yi amfani da rashin jin daɗin Liao da ke kan Jin; masu kare Khitan na garuruwan da ke kan ganuwar Jin, kamar waɗanda ke Gubeikou, sau da yawa sun fi son mika wuya ga Mongols maimakon yaƙi da su. Babban mahimmin abin lura a kan babban layin Babban Ganuwar shine a Juyong Pass mai kariya sosai: maimakon sanya kewaye, Janar Mongol Jebe ya yaudari masu karewa zuwa cikin kwanton bauna kuma ya shiga ta hanyar buɗe ƙofofi. A shekara ta 1215, Genghis Khan ya kewaye, ya kama, kuma ya kori babban birnin Jin na Yanjing (Beijing na zamani). Daular Jin daga karshe ta rushe bayan kewaye da Caizhou a 1234. Yammacin Xia ya riga ya fadi a 1227, kuma Kudancin Song ya yi tsayayya da Mongols har zuwa 1279.