"Use of Mines in Trench Warfare (From the French School of St. Cyr)" by the Army War College (U.S.) is a guide about the hidden war beneath the trenches, revealing the secrets of mine warfare during World War I. It explains how to use mines to attack and defend, showing where to place them for the most impact, how to dig tunnels without being detected, and how to listen for enemy miners. It emphasizes hiding your work, understanding explosions, and taking control of the destroyed areas after a blast, all adding up to a complete plan for soldiers fighting in the underground battle.

Use of Mines in Trench Warfare (From the French School of St. Cyr)
By Army War College (U.S.)
Unearth the explosive strategies of World War I trench warfare, where hidden tunnels and devastating blasts decide the fate of soldiers locked in a deadly game beneath the surface.
Summary
About the AuthorThe United States Army War College (USAWC) is a U.S. Army educational institution in Carlisle Barracks, Pennsylvania, with a Carlisle postal address, on the 500-acre (2 km2) campus of the historic Carlisle Barracks. It provides graduate-level instruction to senior military officers and civilians to prepare them for senior leadership assignments and responsibilities. Each year, a number of Army colonels and lieutenant colonels are considered by a board for admission. Approximately 800 students attend at any one time, half in a two-year-long distance learning program, and the other half in an on-campus, full-time resident program lasting ten months. Upon completion, the college grants its graduates a master's degree in Strategic Studies.
The United States Army War College (USAWC) is a U.S. Army educational institution in Carlisle Barracks, Pennsylvania, with a Carlisle postal address, on the 500-acre (2 km2) campus of the historic Carlisle Barracks. It provides graduate-level instruction to senior military officers and civilians to prepare them for senior leadership assignments and responsibilities. Each year, a number of Army colonels and lieutenant colonels are considered by a board for admission. Approximately 800 students attend at any one time, half in a two-year-long distance learning program, and the other half in an on-campus, full-time resident program lasting ten months. Upon completion, the college grants its graduates a master's degree in Strategic Studies.