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The cover of A History of Warfare

A History of Warfare

John Keegan traces how culture, technology and institutions shaped warfare from early societies to nuclear weapons, and argues that war must cease to serve as routine politics.

11 parts, about 29 minutes to read.

At a glance

Author
John Keegan
Parts
11 parts
Reading time
about 29 minutes
The whole book
Also to read in full

The idea people argue about

Keegan's most controversial argument is that Clausewitz's description of war as a continuation of politics cannot serve as a universal definition. He turns to warrior societies, ritualized combat, fortified states, nomadic armies, and modern mass war to show that culture shapes what counts as fighting, honor, victory, and acceptable violence. A common objection is that even culturally distinctive wars still involve power, collective interests, and political authority, so the Clausewitzian frame may be broader than Keegan allows. Keegan answers that reducing combat to rational state purpose misses participants whose obligations and limits come from religion, custom, kinship, or warrior identity. His evidence strongly challenges a single modern European model of war. It does not make politics irrelevant, but requires political explanation to share space with culture, technology, ecology, and social organization.

Three common misunderstandings

  1. Calling war cultural does not mean that Keegan treats it as harmless ceremony, theatrical display, or mere symbolism. His historical examples show cultural rules organizing extreme violence, sometimes limiting it and sometimes making endurance, sacrifice, or extermination intelligible to participants in different societies.
  2. The book does not claim that technology alone determines military outcomes regardless of human organization and strategic purpose. Weapons and fortifications matter through training, discipline, supply, terrain, institutions, and beliefs about how and why force should be used.
  3. Societies labeled primitive are not presented as lacking strategy, rules, or intelligible collective purposes in armed conflict. Keegan examines raids, rituals, avoidance, courage, and restraint as organized practices rather than failed versions of modern state warfare.

What the summary covers

  1. Introduction1 min
  2. War in Human History4 min
  3. Interlude 1. Limitations on Warmaking1 min
  4. Stone3 min
  5. Interlude 2. Fortification1 min
  6. Flesh3 min
  7. Armies: the social shape of military force2 min
  8. Iron: citizens, empires, and mounted warriors5 min
  9. Logistics and supply: getting forces to battle2 min
  10. Fire: technology, mass armies, and limits5 min
  11. Conclusion: what war is, and what must change2 min

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