Ka kammala wannan jumla: A lokacin mulkin Wanyan Yongji, 'yan Mongol, a karkashin jagorancin Genghis Khan, sun shirya kai wa daular Jin hari. Da farko 'yan Mongol sun kai hari kan Yammacin Xia, jihar da ke karkashin daular Jin. Lokacin da Yammacin Xia suka nemi taimako daga daular Jin, Wanyan Yongji ya yi biris da su; Yammacin Xia daga karshe ya mika wuya ga 'yan Mongol. A 1211, 'yan Mongol sun kaddamar da
wani cikakken mamayewa na daular Jin da kuma kayar da sojojin Jin a wasu kananan fadace-fadace. A cikin watan tara, 'yan Mongol sun kewaye babban birnin Jin, Zhongdu (中都; a yau Xicheng da Fengtai gundumar Beijing), amma an tilasta musu komawa saboda tsananin tsaron Zhongdu. A cikin 1212, 'yan Mongol sun kai wa daular Jin hari kuma sun kewaye babban birnin yammacin Jin, Datong Prefecture (大同府; Datong na yanzu, lardin Shanxi). A cikin wannan shekarar, Yelü Liuge (耶律留哥), wani Khitan, ya jagoranci tawaye ga daular Jin a lardin Jilin. Harkar tawaye ta sami dubban mabiya a cikin watanni. Yelü Liuge ya mika wuya ga 'yan Mongol kuma ya jagoranci' yan tawaye don kayar da sojojin Jin 600,000 a Dijinao'er (迪吉腦兒; kusa da lardin Changtu na yanzu, lardin Liaoning).