Military Power: Explaining Victory and Defeat in Modern Battle. By Stephen Biddle. Princeton: Princeton University Press, 2004. 312p. $37.50.

Stephen Biddle has written a worthy book on the never-ending debate over why land wars are won and lost. It contributes to the academic literature, and his policy judgments deserve attention. He puts forth the theory that “force employment” (i.e., doctrine for using military forces in battle) plays a major role in determining outcomes, as big a role as the size of contending forces and the sophistication of their technologies. He further argues that modern employment doctrine, which enables skilled ground forces to negate the effects of lethal fires against them, was born in late World War I, when attackers finally overcame entrenched defenses. A skilled operations research analyst of tactical battles, Biddle offers a multimethod approach that combines logical reasoning, case studies, mathematical models, statistical analysis, and dynamic simulations. His book can be read by nonspecialists, but many of its technical discussions (e.g., Lanchester equations) require expert knowledge.