Joseon-Later Jin Border Tensions (1618)

Timeline

1. 1618Hamgyeong Province (northeastern border) · Hamgyeong ProvinceAfter unifying Jianzhou and Haixi Jurchens in 1618, Nurhaci continued northward, with Later Jin envoys and troops active near Joseon's northeast. Jurchen tribes like the Odoli who had submitted to Joseon vied with the Later Jin for subjects, and news of border clashes frequently reached Hanseong.
2. 1618Hanseong · Joseon dynastyThe Ming dynasty's Liaodong appealed for help, asking Joseon to send troops. Gwanghae refused to join the war, citing the country's unrecovered strength and the Later Jin's power, and advocated diplomatic distance from both Ming and Later Jin. This neutral policy was criticized by the pro-Ming faction at home but temporarily kept Joseon out of the Ming-Qing war.
3. 1618Pyeongan Province (Yalu River line) · Pyeongan ProvinceJoseon reinforced border troops in Pyeongan and Hamgyeong provinces, repaired passes, and negotiated with the Later Jin through border channels, stating it would neither aid the Ming nor provoke conflict. Though the 1618 tensions did not escalate into full-scale war, Joseon-Later Jin relations entered a state of high alert.