Kim Chongsŏ

Kim Chongsŏ (Korean: 김종서; Hanja: 金宗瑞; 1383 – 10 November 1453) was a prominent military official and politician of the early Joseon dynasty.

[1] The tribe of Wild Jurchens often crossed the Tumen and Yalu rivers and made marauding incursions through the Joseon border.

Since the times of the Goryeo period, there were conciliatory efforts through trade as well as attempted suppression of the raiders by force, but the border conflicts did not cease.

To solve the issue once for all, in 1433, King Sejong sent General Ch'oe Yundŏk [ko] to suppress the Wild Jurchens in the Yalu River Basin.

In October of the same year, Kim Chongsŏ led another expedition to the northern part of Hamgyeong province, where he defeated the Jurchens and strengthened the borders against future attacks.

The new king was too young to rule the nation and all political processes were controlled by then-Chief State Councilor Hwangbo In and General Kim Chongsŏ.