Infantry Drill Regulations, United States Army, 1911 Corrected to April 15, 1917 (Changes Nos. 1 to 19)

This volume offers a meticulous snapshot of early‑twentieth‑century United States infantry training, laying out a complete system of drill that was intended to bring uniformity to every regular and militia unit. Compiled by a board of senior officers, it defines every element of formation—from the spacing of ranks and files to the precise measurements of depth, interval and pace—so readers can picture how a line of soldiers moved in perfect synchrony.

Beyond dry terminology, the manual presents step‑by‑step instructions for marching, aligning, and deploying troops, complete with references to the bugle calls that punctuated each maneuver. Its thoroughness makes it a valuable resource for historians, reenactors, and anyone curious about the disciplined rhythms that underpinned battlefield preparation before the First World War. Listening to the included audio samples brings the era’s cadence to life, turning a technical guide into an audible window onto military life of 1911.