Jin–Song wars
Conflicts that divided China into Northern and Southern Song.
The Jin–Song Wars were a series of conflicts between the Jurchen-led Jin dynasty and the Han-led Song dynasty. The wars began after a failed alliance against the Liao dynasty. The Jurchens rebelled against their Khitan overlords in 1115 and formed the Jin. The Song allied with the Jin against their common Liao enemy, with the Jin promising to cede the Sixteen Prefectures to the Song. However, the Jin’s swift defeat of the Liao, combined with Song military failures, made the Jin reluctant to honor this promise. After embittered negotiations, the Jurchens attacked the Song in 1125, sending one army toward Taiyuan and another toward the Song capital, Bianjing (modern Kaifeng). Surprised by the invasion, the Song general Tong Guan retreated from Taiyuan, which was besieged and later captured. As the second Jin army approached the capital, Emperor Huizong abdicated and fled south, and his eldest son, Qinzong, was enthroned. The Jin besieged Kaifeng in 1126, but Qinzong negotiated their retreat by agreeing to a large annual indemnity. He later reneged on the deal and ordered defenses elsewhere. The Jin resumed war and again besieged Kaifeng in 1127, capturing Qinzong, many imperial family members, and high officials in the Jingkang Incident. This event separated north and south China between Jin and Song. Remnants of the Song court retreated to southern China, eventually relocating to Lin'an (modern Hangzhou), dividing the dynasty into Northern and Southern Song periods. The Jurchens tried to conquer the south in the 1130s but were stalled by a pro-Song insurgency in the north and counteroffensives by Song generals like Yue Fei and Han Shizhong. The Song regained some territories but retreated on orders of Emperor Gaozong, who favored peace. The Treaty of Shaoxing in 1142 set the boundary along the Huai River, though conflicts continued until the Jin fell in 1234. A war begun by the fourth Jin emperor, Wanyan Liang, failed after his defeat at the Battle of Caishi in 1161 and his assassination. A Song invasion motivated by revanchism from 1206 to 1208 also failed. A decade later, the Jin launched an abortive campaign against the Song in 1217 to replace territory lost to the Mongols. The Song allied with the Mongols in 1233, and jointly captured Caizhou, the last Jin refuge, in 1234, ending the Jin dynasty. The wars spurred technological, cultural, and demographic c
- belligerents
- Jin dynasty vs. Song dynasty
Lore & Background
The Jin–Song wars were a series of conflicts between the Jurchen-led Jin dynasty and the Han-led Song dynasty. The wars began after the Jin allied with the Song to overthrow their common enemy, the Khitan-led Liao dynasty. The Jin promised to return the Sixteen Prefectures to the Song, but after the Jin swiftly defeated the Liao and witnessed Song military failures, they became reluctant to cede the territory. Following failed negotiations, the Jin attacked the Song in 1125, sending one army toward Taiyuan and another toward the Song capital, Bianjing. The Song emperor Huizong abdicated and fled south upon hearing the news, and his son Qinzong was enthroned. The Jin besieged Kaifeng in 1126, but Qinzong negotiated a retreat by agreeing to a large annual indemnity. When he reneged, the Jin resumed war and captured Kaifeng in 1127, seizing Qinzong, many imperial family members, and high officials in the Jingkang Incident. This event split China into northern Jin and southern Song territories. The Song court retreated south, eventually settling in Lin'an, marking the start of the Southern Song period. In the 1130s, Jin attempts to conquer southern China were stalled by insurgencies and counteroffensives led by Song generals Yue Fei and Han Shizhong. The Treaty of Shaoxing in 1142 set the boundary along the Huai River, but conflicts continued until the Jin fell in 1234. The wars introduced gunpowder weapons, including the first recorded use of the fire lance at the siege of De'an in 1132. Jurchen migrants settled in conquered northern territories and assimilated with local culture, while Song refugees resettled in the south. The Southern Song capital Lin'an grew into a major commercial center, and trade with Jin remained profitable despite decades of war.
Reader's Guide
The Jin–Song Wars were a series of conflicts between the Jurchen-led Jin dynasty and the Han-led Song dynasty. They began after the Jin and Song allied to overthrow their common enemy, the Liao dynasty. The Jin promised to return the Sixteen Prefectures to the Song, but after the Jin swiftly defeated the Liao and the Song performed poorly militarily, the Jin became reluctant to cede the territory. Following failed negotiations, the Jin attacked the Song in 1125, sending one army toward Taiyuan and another toward the Song capital, Bianjing. The Song emperor Huizong abdicated and fled south upon the Jin approach, and his son Qinzong was enthroned. After an initial siege of Kaifeng in 1126, Qinzong negotiated a Jin retreat by agreeing to a large annual indemnity, but he later reneged. The Jin resumed war and captured Kaifeng in 1127, seizing Qinzong, many imperial family members, and high officials in the Jingkang Incident. This event split China between north and south, forcing Song remnants to relocate to Lin'an, dividing the dynasty into Northern and Southern Song. The Jin attempted to conquer southern China in the 1130s but were stalled by a pro-Song insurgency in the north and counteroffensives by Song generals like Yue Fei and Han Shizhong. The Treaty of Shaoxing in 1142 set the boundary at the Huai River, though conflicts continued. A later Jin invasion under Emperor Wanyan Liang failed after the Battle of Caishi, and he was assassinated. A Song revanchist invasion in 1206–1208 also failed. In 1217, the Jin launched an abortive campaign against the Song to replace territory lost to the Mongols. The Song eventually allied with the Mongols, and together they captured the Jin emperor’s last refuge at Caizhou in 1234, ending the Jin dynasty. The wars spurred technological, cultural, and demographic changes. The siege of De'an in 1132 saw the first recorded use of the fire lance, an early firearm ancestor, alongside incendiary weapons like huopao and explosive tiehuopao. Jurchen migrants settled in conquered northern lands and assimilated, while Song refugees moved south, boosting Lin'an's commercial growth. The Jin adopted a centralized Confucian bureaucracy, and despite warfare, trade between the two states remained profitable. The conflicts ultimately weakened both dynasties, contributing to the later Mongol conquest of the Song.
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