The field of Operations Research (OR) grew out of World War II operations to improve the effectiveness of newly introduced weapons and equipment, and to solve logistical problems for the war effort. Since its beginnings, OR has rapidly become a robust set of decision-making methodologies widely used in business, engineering, and governmental sectors. Nevertheless, many of OR's military and defense contributions have remained confined to classified reports. This book is a systematic, state-of-the-art treatment of military operations research (MOR). It has been written for those interested in learning about the applications of OR techniques to military problems, and within these discussions theoretical concepts needed for analysis of military issues are presented. The book examines issues that relate to both tactical and strategic levels. Several examples have been solved in each chapter to illustrate the application of the techniques of MOR to military systems. The data used in these examples are hypothetical. They do not correspond to any existing weapon or military situations. They are used strictly to illustrate an application of MOR in defense decision-making.