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World-changing475 BCE – 221 BCE · 254 years

Warring States Period (China)

China · Yellow River · Yangtze River

Seven centuries of incessant warfare between Chinese states (475-221 BCE) killed millions, industrialized battle, and created political philosophy that shaped civilizations.

Estimated casualties

1.0M – 5.0Mestimated dead

HEADLINE1.0M — the single figure used on the map

475-221 BCE; centuries of warfare

SOURCEChinese chronicles; Clodfelter

What happened

The Warring States Period (475-221 BCE) saw hundreds of Chinese states fighting for supremacy. Warfare became increasingly sophisticated: iron weapons replaced bronze; large standing armies emerged; infantry tactics evolved. Sun Tzu's 'Art of War' was written during this period, codifying strategy. States conducted total warfare, enslaving populations and scorching farmland. Qin's superior Legalist philosophy and iron weapons ultimately prevailed, conquering all rivals (230-221 BCE). Millions died through 250+ years of intermittent warfare; populations in conquered territories collapsed.

Why it mattered

The Warring States Period's martial innovations (iron weapons, mass armies, supply logistics) defined military practice for millennia. Sun Tzu's strategic philosophy became foundational to global military thought—still taught at war colleges. The period's political fragmentation ended with Qin unification, demonstrating that centralized bureaucratic states could overcome feudal fragmentation. Eastern martial arts and statecraft traditions trace to this period. The philosophical schools (Confucianism, Daoism, Legalism) developed partly in response to the period's chaos.

Belligerents7

  • Various Chinese states
  • Qin
  • Qi
  • Chu
  • Yan
  • Zhao
  • Wei

ON THE MAPQin Dynasty

Conflict graph

SUB-CONFLICTS · 4

Sources

  1. Wikipedia: Warring States Period (China)
  2. Clodfelter, Warfare and Armed Conflicts (4th ed., 2017)
  3. Wikipedia — text reused under CC BY-SA 4.0

Open in the atlas →Seeks the timeline to 475 BCE and opens this record.

35.00°N · 110.00°E · 475 BCE – 221 BCEWARS-ATLAS / CONFLICT / CHINESE-WARRING-STATES

Cite as: Warring States Period (China) (475 BCE – 221 BCE). War Atlas. https://waratlas.org/c/chinese-warring-states · Sources & methodology