Korean History › Late Joseon › Imjin War (Japanese invasions of Korea)
Righteous armies (uibyeong) of the Imjin War
1592–1598· Event· Society, economy & people
Well documentedSolid records, physical evidence or scientific consensus.
Volunteer militias of scholars, monks, farmers and slaves that fought the Japanese across Korea in 1592–1598.
See it on the Korean History map →What happened
As Joseon's regular army collapsed in 1592, local leaders raised uibyeong (의병), 'righteous armies.' Yangban scholars led many: Gwak Jae-u, the 'Red-Robed General,' in Gyeongsang; Go Gyeong-myeong and Jo Heon in Jeolla and Chungcheong. The monks Hyujeong (Seosan) and Yujeong (Samyeong) raised monk soldiers. Using local terrain, they ambushed supply columns, retook towns and tied down Japanese garrisons. At their peak they may have numbered over 20,000; estimates vary.
Why it matters
They kept resistance alive in the countryside when the state failed, and set an ideal of citizen resistance Koreans revived against Japan in 1895–1915.
How we know
The Sillok, the Jingbirok, leaders' diaries and letters, and local memorial shrines; Japanese records complain of constant attacks on their lines.
Still debated
How much the militias achieved militarily, compared with the navy and Ming troops, is debated; later local histories may inflate their heroes.
Connections (2)
▸Righteous armies (uibyeong) of the Imjin War resisted Japanese forces in Imjin War (Japanese invasions of Korea)Well documented
The connection
With the regular army broken in the first weeks, righteous armies raided Japanese supply lines, retook towns and helped defend key points such as Jinju in 1592. Gwak Jae-u's forces kept the Japanese out of western Gyeongsang, shielding the Jeolla rice region. Many militias were later folded into the government army.
When and how
1592–1598 across southern and central Korea; leaders included Gwak Jae-u, Go Gyeong-myeong, Jo Heon, Kim Cheon-il and the monks Hyujeong and Yujeong.
How we know
Korean court records, leaders' diaries, and Japanese reports complaining of constant attacks in occupied areas.
Debates and open questions
Their military weight compared with the navy and Ming armies is debated; local pride may have inflated some accounts.
▸Righteous armies (uibyeong) of the Imjin War lent their name and tradition to Righteous armies against Japan (1895–1915)Mostly agreed
The connection
As Japan's control tightened from 1895, Confucian scholars, then commoners and disbanded soldiers, raised militias under the same name, uibyeong. They drew on the memory of the Imjin volunteers who rose when the state failed, giving them a model of local, loyal resistance to Japan.
When and how
From 1895, after Queen Min's assassination and the topknot-cutting decree, to a peak in 1907–1909; leaders included Yu In-seok and Choe Ik-hyeon.
How sure are we?
The shared name, and proclamations framed in the same Confucian language of loyalty and righteousness used in the 1590s.
Debates and open questions
How directly later fighters drew on Imjin memory, versus Confucian ideas of righteousness in general, is debated; Japanese records called them 'rioters' (bōto).