Western Xia–Jin Relations (1120s)

Timeline

1. 1124Xingqing Prefecture · NingxiaAs Liao neared collapse and Jin grew stronger, Western Xia's Chongzong Li Qianshun sent envoys to Jin offering submission, willing to serve Jin as it had served Liao. Emperor Taizong of Jin issued an oath edict, treating Xia as a vassal state and ceding the former Liao northwest territory south of the Yin Mountains and west of Tuluo Lake to Western Xia, formally establishing a suzerain-vassal relationship.
2. 1126Tiande Army · Inner MongoliaAround the Jingkang Incident, Western Xia, acting on Jin's earlier promise of territorial cession, sent troops to take Tiande, Yunnei, Wuzhou, and the Eight Hostels of Hedong, and captured Song border fortresses such as Zhenwei Fortress, Xi'an Prefecture, and Huai-de Army, withdrawing after extensive plundering. Jin general Wanyan Zongbi then forcibly seized Tiande and Yunnei, provoking Jin-Xia friction.
3. 1127Northern Shaanxi · ShaanxiTo appease Western Xia over the seizure of Tiande and Yunnei, Jin demarcated a border with Xia, ceding roughly several thousand li of northern Shaanxi to Western Xia in compensation for Tiande, Yunnei, and other prefectures. This temporarily eased Jin-Xia tensions, expanded Western Xia's territory westward, and, following the fall of Northern Song, Song and Xia no longer shared a direct border.