• First (1862) standard manual for duties in the field • Standing orders for layout of camps and marches and duties of officers, provost marshals, surgeons, etc • 112 regulations "every soldier must know" Perplexed at the lack of standardization in the units under his command, Brig. Gen. Butterfield sought and gained acceptance from the commanding general of the Army of the Potomac for standardizing the procedures used by Civil War soldiers for performing duty when in the field, such as the laying out of camps, conduct of marches, and the performance of outpost (guard) duty, handling of stragglers, movement of baggage, and related items. The book was for soldiers and officers, and it should be of great interest to historians and reenactors wishing to know how the Army operated when in the field in hostile territory.

• The "rules of warfare" and "government of the army" as they existed in the American Civil War • All 101 Articles of War as amended through June 1863 including the famous Lieber Code (General Orders No. 100), directed by President Lincoln, which expanded the laws of land warfare and General Orders No. 49 on the granting of paroles • Copious extracts from the Revised U.S. Army Regulations through June 1863 This compendium of laws and rules is a testimony to America's reverence for the rule of law as well as its high regard for "civilized" behavior on the battlefield. The Articles of War were normative rules covering military duty and punishments allowed for violations. The Lieber Code was a new and profound law for the conduct of armies in the field, to include humane treatment of prisoners and protection of property and civilians. It had a profound affect on the evolution of the laws of land warfare in use today. Army Regulations, on the other hand, dealt with the administration and management of the army-from personnel assignments to supply and recruiting operations-all three sets of rules were used by both the Union and Confederate armies. An essential reference for students, historians, writers, reenactors, and those interested in how our Civil War armies operated.