Why bother with quantitative analysis? Because analysis and numbers drive many policy debates. Explores the connection between quantitative analysis and policy formulation in areas such as strategy development, wartime operations, force structure design, budget tradeoffs and weapon system acquisition. Covers many different types of analysis, not only the classic kinds of cost-effectiveness and combat models but also manpower, investment and cost. Although geared toward students going into national security positions, the methods and approaches apply broadly. Aims to make students intelligent consumers of analytic products, not quantitative analysts. No advanced mathematics required.