Book excerpt: Browne makes a case against women in combat, based on research in anthropology, biology, history, psychology, sociology, and law, as well as military memoirs. It asks hard questions that challenge the assumptions of feminists. For instance: 5 Has warfare really changed so much as to reverse the almost unanimous history of all-male armed forces? 5 Are men and women really equivalent in combat skills, even leaving aside physical strength? 5 Do female troops respond to traditional types of motivations? 5 Can the bonds of unit cohesion form in a co-ed military unit? 5 Can an all-volunteer military afford to reject women?