E-text prepared by Richard Tonsing, Brian Coe, and the Online Distributed Proofreading Team (http://www.pgdp.net) from page images generously made available by Internet Archive (https://archive.org) Note: Project Gutenberg also has an HTML version of this file which includes the original illustrations. See 59317-h.htm or 59317-h.zip: (http://www.gutenberg.org/files/59317/59317-h/59317-h.htm) or (http://www.gutenberg.org/files/59317/59317-h.zip) Images of the original pages are available through Internet Archive. See https://archive.org/details/tacticsdutiesfor00bertrich Transcriber’s note: Text enclosed by underscores is in italics (_italics_). Text enclosed by equal signs is in bold face (=bold=). TACTICS AND DUTIES FOR TRENCH FIGHTING by GEORGES BERTRAND Capitaine, Chasseurs Alpins, de l’Armée de France and OSCAR N. SOLBERT Major, Corps of Engineers, U.S.A. With Diagrams G. P. Putnam’S Sons New York and London The Knickerbocker Press 1918 Copyright, 1918 by Oscar N. Solbert The Knickerbocker Press, New York ------------------------------------------------------------------------ FOREWORD It must be borne in mind that this book deals with principles and examples of methods of warfare, and not fixed rules. There are no fixed methods in warfare. Development in warfare means change of methods or the invention of new ones to overcome military difficulties. However, one must have knowledge of past and present methods to be ready for the next logical step of development. HEADQUARTERS, FORT SHERIDAN TRAINING CAMP, ILL., October 26, 1917. From: MAJOR O. N. SOLBERT, C. of E. To the Adjutant General, U. S. Army, through official channels. Subject: Publication of Lectures. I. Request authority to publish in pamphlet form lectures given at this camp on Trench Fighting. [Illustration: Major, C. of E.] _1st Indorsement_ OFFICE OF THE SENIOR INSTRUCTOR, FORT SHERIDAN TRAINING CAMP, ILLINOIS, OCTOBER 26, 1917. TO THE COMMANDING OFFICER: Earnestly recommending that the lectures referred to above be published in pamphlet form. I consider it most desirable that every graduate of this camp take these lectures with him, upon being commissioned. I do not believe that the best interests of the service will suffer, in any way by publishing these lectures. [Illustration: Lt. Colonel, Infantry, Senior Instructor.] _2nd Indorsement_ HQ., THE FORT SHERIDAN TRAINING CAMP, OCTOBER 26, 1917. TO THE ADJUTANT GENERAL OF THE ARMY, WASHINGTON, D. C. I. Approved. [Illustration: Colonel of Cavalry, Commanding.] WAR DEPARTMENT, A. G. O., OCTOBER 31, 1917. TO HEADQUARTERS, THE FORT SHERIDAN TRAINING CAMP, FORT SHERIDAN, ILL. Returned. I. Approved.