Book excerpt: Why do warriors fight? What is worth dying for? How should a warrior define words like "nobility," "honor," "courage," or "sacrifice"? What are the duties and obligations of a warrior, and to whom are they owed? What should bring a warrior honor or shame? These and other questions are considered in Shannon French's The Code of the Warrior, a book that explores eight warrior codes from around the globe, spanning such traditions as the Homeric, Roman, and Samurai cultures, through to the present day-culminating in a thoughtful analysis of a timely question: Are terrorists warriors?