Korean History › Goryeo
Mongol invasions of Korea
1231–1259; court returns 1270· War· Wars & invasions
Well documentedSolid records, physical evidence or scientific consensus.
Nearly 30 years of Mongol campaigns (1231–1259) that ravaged Goryeo until it accepted Mongol overlordship.
See it on the Korean History map →What happened
The Mongol invasions of Korea (몽골의 고려 침입) began in 1231, using as a pretext the killing of a Mongol envoy in 1225. In 1232 the military regime moved the court to Ganghwa Island. On the mainland, people held out in mountain forts and on islands; at Cheoin in 1232 the monk Kim Yun-hu killed the Mongol commander Sartai. Six or more major campaigns, depending on how they are counted, burned crops, towns and temples such as Hwangnyongsa. Peace came in 1259.
Why it matters
Goryeo was not absorbed as a Mongol province, rare among conquered states, but the human and cultural cost was enormous.
How we know
The Goryeosa, the Yuan history (Yuan shi), and writings by officials such as Yi Gyu-bo. The Goryeosa says 206,800 people were taken captive in 1254 alone; estimates vary.
Still debated
Total deaths are unknown, and why Goryeo, unlike most Mongol targets, kept its own dynasty is still discussed.
Inside this (2)
Connections (6)
▸Tripitaka Koreana was carved to seek protection from Mongol invasions of KoreaWell documented
The connection
The Mongols burned Goryeo's first Tripitaka blocks in 1232. From Ganghwa, King Gojong and the Choe regime set up a Tripitaka Directorate and carved a new set by 1251 as an act of faith. Yi Gyu-bo's prayer for the project asked the Buddhas to drive off the Mongols, as the first set was believed to have driven off the Khitans.
When and how
1236–1251, at a directorate on Ganghwa Island and a branch office, probably on Namhae Island; funded largely by the Choe family.
How we know
Yi Gyu-bo's prayer text, kept in his collected works, states the purpose; carved notes on the blocks give the years and the directorate's name.
Debates and open questions
How much the project was sincere faith, and how much propaganda to rally the country behind the Choe regime, is debated.
▸Goryeo celadon declined after Mongol invasions of KoreaMostly agreed
The connection
Celadon peaked in the 12th and early 13th centuries. After the Mongol wars and under Yuan rule, the court's wealth and patronage shrank and taste turned toward Chinese porcelain. From the 1350s Japanese pirate raids hit the southwest coast, scattering potters from Gangjin and Buan. Late Goryeo celadon grew coarser and, in early Joseon, gave way to buncheong ware.
When and how
Mid-13th to late 14th century, at the coastal kilns of Gangjin and Buan and at smaller inland kilns.
How sure are we?
Dated pieces and kiln excavations show the decline in glaze and decoration; the Goryeosa records the pirate raids on the coast.
Debates and open questions
Historians differ on the main cause: the Mongol wars, changing Yuan-era taste, or later pirate raids. Some fine inlaid pieces date after 1231.
▸Goryeo military regime resisted from Ganghwa Island during Mongol invasions of KoreaWell documented
The connection
In 1232 the strongman Choe U moved the court to Ganghwa Island, a short but tide-swept crossing from the mainland that Mongol cavalry could not take. The regime refused to surrender for nearly 30 years, collecting taxes by sea, while mainland people were told to retreat to mountain forts and islands.
When and how
1232–1270, on Ganghwa Island at the mouth of the Han River; Choe U, then Choe Hang and Choe Ui.
How we know
The Goryeosa records the move and the long standoff; Ganghwa's palace site and earthen walls survive.
Debates and open questions
Did the island strategy save Goryeo, or mainly protect the regime's power while farmers bore the Mongol raids? Historians weigh both.
▸Sambyeolcho Rebellion resisted the peace that ended Mongol invasions of KoreaWell documented
The connection
The peace of 1259 and the court's return to Kaesong in 1270 meant accepting Mongol control. The Sambyeolcho rejected it: they set up a rival king on Jindo and held the southwest coast and sea lanes. Joint Goryeo–Mongol forces crushed them on Jindo in 1271 and on Jeju in 1273, after which the Mongols ruled Jeju directly.
When and how
1270–1273, on Jindo's Yongjang fortress and Jeju's Hangpaduri fortress; Bae Jung-son, then Kim Tong-jeong.
How we know
The Goryeosa records the campaigns; the fortress sites have been excavated; a Japanese summary of their 1271 appeal to Japan survives.
Debates and open questions
Whether their resistance delayed the Mongol invasion of Japan, and how much support they had among ordinary people, is debated.
▸Mongol invasions of Korea led to Goryeo under Yuan overlordshipWell documented
The connection
In 1259 the crown prince, later King Wonjong, traveled to submit and met Khubilai, who promised not to change Goryeo's customs. So Goryeo kept its dynasty, but its kings married Mongol princesses from 1274, raised heirs in Dadu, and lost the northeast to direct Mongol rule. The war's end made Goryeo subordinate to Yuan.
When and how
1259–1274, between the Goryeo court and Khubilai Khan's court in China.
How we know
The Goryeosa and the Yuan history both record the submission, Khubilai's promise and the royal marriages.
Debates and open questions
How much real self-rule Goryeo kept, and whether 'colony,' 'vassal' or 'son-in-law state' fits best, is debated.
▸Samguk yusa (Memorabilia of the Three Kingdoms) was written in the aftermath of Mongol invasions of KoreaMostly agreed
The connection
Iryeon lived through the Mongol wars, which burned temples like Hwangnyongsa in 1238. He compiled the Samguk yusa around 1281, under Mongol overlordship. Many historians read it as an effort to preserve a shared Korean past, starting history with Dangun so that Korea's origins stood level with China's.
When and how
Around 1281, near Gyeongju and at Ingaksa temple, while Goryeo was supplying the Mongol invasion of Japan.
How sure are we?
The dating follows Iryeon's life and internal clues; the text states no purpose, so the link to the wars is an interpretation.
Debates and open questions
Whether a national-identity motive is a modern reading projected onto a monk's Buddhist collection is debated.