This book is intended to serve as a foundation upon which the military beginner may build so that he may in time be able to study the technical service manuals intelligently. It has been written as an elementary textbook for those who desire to become Reserve Officers, for schools and colleges, and for those who may be called to the colors.

The authors have commanded companies at Plattsburg, New York, and, noting the need of such a text, compiled their observations while there.

The average man undergoing military training wants to know as much as possible about the art and science of war. He wants to acquire a good knowledge of the principles involved. He is interested in the technique of movements. He is willing to work for these things, but he often becomes lost in confusion when he attempts to study the technical service manuals. He does not know how to select the most important and omit the less important. The authors have selected from the standard texts some of the vitally important subjects and principles and have presented them to the civilian in a simple and plain way.

The first part of the text is for the beginner. It tells him how to prepare physically for strenuous military work. After assisting him through the elementary part of his instruction, it presents for his consideration and study the Officers' Reserve Corps.

The second part, or supplement, is a more technical discussion of those subjects introduced in the first. It is intended principally for those who have made excellent progress.