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Wihwado Retreat
1388· Event· Rulers & states
Well documentedSolid records, physical evidence or scientific consensus.
Yi Seong-gye's 1388 decision to turn his army back from the Yalu River and seize power instead of attacking Ming China.
See it on the Korean History map →What happened
When Ming claimed Goryeo's northeast in 1388, King U and General Choe Yeong sent about 50,000 men to attack Ming's Liaodong. Yi Seong-gye, commander of the Right Army, had objected: a small country should not attack a large one, summer was bad for war, Japanese pirates would raid, and rains would spoil bows and spread disease. Stalled by floods on Wihwa Island in the Yalu, he turned back (위화도 회군), took Kaesong, exiled Choe Yeong and deposed the king.
Why it matters
It was in effect a coup that handed Yi Seong-gye control of the state, four years before he founded Joseon.
How we know
The Goryeosa and the Annals of King Taejo, both compiled under Joseon, which present the retreat as wise and loyal.
Still debated
Whether Yi planned the takeover in advance or acted under pressure, and whether the Liaodong attack could have worked.
Connections (3)
▸Goryeo under Yuan overlordship set up the Ming dispute behind Wihwado RetreatMostly agreed
The connection
Yuan had ruled Goryeo's northeast directly as the Ssangseong Commandery until 1356. When Ming replaced Yuan, it announced in 1388 that it would take those same lands as a Cheollyeong Commandery. King U and Choe Yeong answered by ordering an attack on Ming's Liaodong; Yi Seong-gye, sent against his will, turned back at Wihwa Island.
When and how
1388, at Kaesong and on the Yalu River; King U, General Choe Yeong, Yi Seong-gye and the Ming Hongwu Emperor.
How sure are we?
Goryeosa and Ming records both note the Cheollyeong plan and its basis in the old Yuan border.
Debates and open questions
Whether Ming truly meant to annex the land or was bargaining is unclear; it later dropped the plan. Pro-Yuan and pro-Ming factions also shaped Goryeo's decision.
▸Wihwado Retreat was led by Yi Seong-gye (King Taejo of Joseon)Well documented
The connection
In 1388 Goryeo's court ordered General Yi Seong-gye to attack Ming-held Liaodong. He had already given four reasons the campaign was unwise; halted by floods at Wihwado, an island in the Yalu River, he turned his army around. He marched on the capital, ousted the commander Choe Yeong and King U, and became Goryeo's real power.
When and how
Summer 1388 on Wihwado island in the Yalu, then the capital Gaegyeong (Kaesong); Yi Seong-gye and Jo Min-su against Choe Yeong and King U.
How we know
The Goryeosa and the Taejo sillok record Yi's 'four reasons' against the campaign and the coup that followed.
Debates and open questions
These accounts were written by Yi's own dynasty; whether the retreat was a principled stand or a planned power grab is debated.
▸Wihwado Retreat led to JoseonWell documented
The connection
The retreat put the army and government in Yi Seong-gye's hands. With reform-minded Neo-Confucian scholars such as Jeong Do-jeon, he deposed two kings, pushed through a 1391 land reform that broke the old elite's estates and rewarded his backers, and in 1392 accepted the throne. The full story is under Yi Seong-gye.
When and how
1388–1392, at Kaesong; Yi Seong-gye, Jeong Do-jeon and their allies.
How we know
The Goryeosa and the Annals of King Taejo record each step, though both were compiled by the winning side.
Debates and open questions
Whether the new dynasty was inevitable from 1388, or improvised as opposition such as Jeong Mong-ju's emerged, is debated.