This manual contains basic and advanced training and techniques for static line parachuting. It is designed to standardize procedures for initial qualification and training of personnel in their duties and responsibilities in airborne operations. The jumpmaster, assistant jumpmaster, safeties, DACO, DZSTL, and DZSO occupy key positions in airborne operations. This manual contains the initial training and qualifications of the personnel designated to occupy these critical positions. This publication was prepared by the U.S. Army Infantry School.

Originally published by the War Department in 1917, Lessons in Fortification is divided into two parts: "Effects of Artillery Fire" and "Field Fortification and the Protection of Batteries."

This manual describes the guidelines to be followed in selecting a process capable of producing potable water supplies from brackish and sea water sources. Prepared by the U. S. Army Corps of Engineers for military water needs, the technical information is equally applicable to many civilian needs.

This handbook is divided into four sections. The first section is a review of human physiologic and pathophysiologic reactions to cold. The second is an approach to the prevention of illness and injury during operations in the cold. The third is a clinical review, from the military medical perspective, of the presentation and management of the various forms of illness and injury caused by cold exposure. The fourth section summarizes particularly important or useful points to allow easy extraction for training.

Mines are among the best artificial obstacles---they are portable, installed relatively easily, and constitute a hazard to the enemy; however large scale employment of mines requires considerable time, manpower, and logistical effort. Mines delay and canalize enemy movement, lower the enemy's will to fight, and cause fear of sudden and unexpected casualties. Mines, in contrast to passive obstacles such as road craters and barbed wire, are termed active obstacles because of their destructive potential. If placed in a location where movement is confined such as at a ford or on a bridge...