CASUALTY RECORD // January 1, 1274
Mongol invasions of Japan
Estimated casualties — killed, wounded, captured, and missing — by side, with confidence labels per surviving record.
Casualties by side
1 sides catalogued · combined 1,274 estimated
Yuan dynasty
1,274
Medium-confidence figure
Battle context
The Mongol invasions of Japan, launched by Kublai Khan of the Yuan dynasty in 1274 and 1281 following the submission of the Korean kingdom of Goryeo to vassaldom, represent one of the defining limits of Mongol imperial expansion. Both attempts ultimately failed, marking one of the few frontiers where the broader Mongol conquests were halted and reversed. For Japan, the invasions became nation-defining events, shaping collective memory and identity in ways that persisted across centuries. The invasions are also the origin of the term kamikaze, originally applied to the typhoons that destroyed the Mongol fleets during the 13th-century attempts; the word was later adopted in the 20th century to describe Japanese pilots who deliberately crashed aircraft into enemy warships during the final years of World War II. The episodes thus carry significance not only as military history but as a point of linguistic and cultural continuity across Japanese history.
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