The Author.
Chapter I
ORGANIZATION
The normal organization of an intrenched position includes the following elements from front to rear:
1. In front of the position and at a variable distance from the first line fire trench there is a line of wire entanglements. (See Obstacles, p. 13).
2. Close up to the wire entanglements there is an intrenched post known as the "listening post," which is connected with the first line fire trench by a zigzag communicating trench. (See Listening Posts, p. 27).
3. Then comes the first line fire trench with attached machine-gun emplacements at convenient points. (See Fire Trench and Machine-Gun Emplacements, pp. 33 and 54).
4. The fire trench is so narrow that lateral communication along it is effected only with difficulty. In order to provide a passageway a communication or supervision trench is provided a few yards in rear of the fire trench. Passageways lead from this communication trench to the fire trench and to the dugouts located along it.