This book describes in crisp text all the information commanders and staff officers need to know about ‘how the army works’. It includes command organisation and administration; principles of employment of infantry, cavalry, artillery, engineers, and signal; logistics (ordinance, quartermaster, transportation, subsistence, and medical); movement of armies; camps and bivouacs; reconnaissance and patrols; order of battle for attack, defence, siege, and retreat; and use of field fortifications, obstacles, spies, and agents. The book also includes is information on promotions, courts-martial, military honours, and even cooking and the design and use of field ovens.