The importance assumed by trench warfare and the progress made in the application of field fortification and in the science of the attack and defense of elaborate systems of trenches, have rendered necessary special instruction in the details of...
"This manual presents the details of construction, use, and maintenance of land sites for low altitude barrage balloons. Rigging of the bed is described for securing low-altitude barrage balloons by bedding down, tail-line mooring, mooring-cirlce...
In locating the site for a defensive firing line, it must be divided into three sections : firing line, immediate support and reserves. In doing this several opposing factors should be taken into consideration and their relative importance judged...