Book excerpt: This user-friendly reference systematically covers the entire intellectual history of strategy and war, in all cultures and all times. Each culture has had its Machiavelli, its Sun Tzu; its own Mohammed-like or Napoleonic figure. This encyclopedia ranges across the world to provide entries on every significant military and strategic thinker in human history as well as a number of military cultures, covering Chinese, Western, Indian, Islamic, and other cultures. Each entry supplies a brief biography, a synopsis of the writer's theories, their success or failure, and their impact on other thinkers and military practitioners. The unique coverage allows readers to cross cultural barriers and gain access to sources in languages as diverse as Arabic and German, and to note key similarities and contrasts. The relative importance and contribution of each individual to intellectual progress is noted, as is the greater significance of specific schools of thought and debates.