A practical manual lays out a system of terrain exercises that train officers and noncommissioned officers to apply tactical formations and methods to actual ground. It explains how to design and fit problems to terrain, the director's responsibilities, and the stepwise conduct of exercises including statement of situations, written or oral solutions, and guided discussion. Sample problems cover attack and defense, approach marches, advance and flank guards, outposts, and various patrols, with attention to issuing orders, estimating situations, and developing decision-making between classroom theory and field practice.