"The pamphel presents a course in Radio Operating Procedure (Voice) in general and as applied to procedure with SCR 194 specifically. The principles of voice procedures are the same for all radio sets employing voice communications."
United States Army A.E.F. (1917-1920) Artillery School (Saumur)
In order to see, think and act, an army needs a nervous system of lines of information running from the seat of government ot the listening posts extending even into the enemy territory. Wherever this system breaks down, the army will be...
"Wire is one of the principal means of communication for all field artillery except mechanized and antitank artillery. It consists of telephone or telegraph communication. All other means augment and supplement wire."