Written in 1861 at the direction of the War Department and copiously illustrated, this was the book used to train, lead, and maneuver U.S. Infantry units on Civil War battlefields. It contains the school of the soldier, the company, and battalion or fielded regiment, along with all-important instructions for skirmishers. Over 15 pages of field music, the articles of war in use at the time, and a dictionary of Civil War military terminology completes this extensive work. The work was authorized and adopted by the Secretary of War on May 1, 1861. This is the second edition issued in 1863.
The U.S. Department of War was the United States Cabinet department originally responsible for the operation and maintenance of the United States Army, also bearing responsibility for naval affairs until the establishment of the Navy Department in 1798, and for most land-based air forces until the creation of the Department of the Air Force on September 18, 1947.