Georges Etienne Bertrand, Tactics and Duties for Trench Fighting
“ A telephone connecting the post with the nearest command post (center of resistance or sector) .The observers in these posts are directly under command of the intelligence officers of the regiment and are of a special personnel. They must be thoroughly familiar with the regulations of the posts, maps, panorama, etc.The intelligence officer collects and coordinates all information gathered in the sector. Every morning he turns in a consolidated report made up from the information in the captains’ daily reports and from the records of the sector observatories. ”
