Major conflict220 CE – 280 CE · 60 years
Three Kingdoms Period Wars
China · Wei · Shu · Wu
After the Han Dynasty's collapse, warlords fractured China into three competing kingdoms for 60 years.
Estimated casualties
20M – 36Mestimated dead
HEADLINE20M — the single figure used on the map
Sub-period (220-280) of the Three Kingdoms Wars record (184-280); overlapping estimates. Census-based 20-36M population loss is largely unregistered population, not deaths.
SOURCEWikipedia: Three Kingdoms
What happened
When the Han Dynasty imploded after the Yellow Turban Rebellion (184-205), ambitious warlords—Cao Cao, Liu Bei, and Sun Ce—carved out regional kingdoms. Cao Cao controlled the north, Liu Bei the southwest, and Sun Ce/Sun Quan the southeast. Battles raged continuously as rivals vied for supremacy. Key conflicts included the Battle of Red Cliffs (208-209), where Liu Bei and Sun Quan defeated Cao Cao's southern invasion attempt. The military campaigns employed chariots, cavalry, archery, and naval forces; generals like Guan Yu and Lü Bu became legendary. Political intrigue, alliances, and betrayals defined the period. By 220, Cao Cao's son established the Wei Dynasty; rival kingdoms followed (Shu, Wu).
Why it mattered
The Three Kingdoms period was immortalized in the novel 'Romance of the Three Kingdoms,' becoming central to Chinese cultural identity. The era's military innovations—such as crossbows, siege tactics, and cavalry deployment—influenced subsequent Chinese warfare. The period's fragmentation lasted until the Jin Dynasty's brief reunification (266-316), after which China again fractured into the Northern and Southern Dynasties.
Belligerents3
- Cao Wei
- Shu Han
- Eastern Wu
ON THE MAPThree Kingdoms (China)
Conflict graph
PART OFThree Kingdoms Wars
Sources
- Wikipedia: Three Kingdoms Period Wars
- Clodfelter, Warfare and Armed Conflicts (4th ed., 2017)
- Wikipedia — text reused under CC BY-SA 4.0
Open in the atlas →Seeks the timeline to 220 CE and opens this record.
Cite as: Three Kingdoms Period Wars (220 CE – 280 CE). War Atlas. https://waratlas.org/c/three-kingdoms-wars · Sources & methodology