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At the same time that these elementary methods of signal communication were being evolved on land, a comparable development was going on at sea.Early signaling between naval vessels was by prearranged messages transmitted by , lights, or the movement of a sail.They were thus able to maintain contact with their homelands during their far-flung campaigns and to transmit messages with surprising speed. As he advanced upon his conquests he established pigeon relay posts across Asia and much of eastern Europe.
An intricate system of telephone lines involving thousands of miles of wire soon appeared on each side.
Pole lines with many crossarms and circuits came into being in the rear of the opposing armies, and buried cables and wires were laid in the elaborate trench systems leading to the forwardmost outposts.
The main arteries running from the rear to the forward trenches were crossed by lateral cable routes roughly parallel to the front.
Thus, there grew an immense gridwork of deep buried cables, particularly on the German side and in the British sectors of the Allied side, with underground junction boxes and test points every few hundred yards.
As the war progressed there was a growing appreciation of the need for improved electrical communications of much greater capacity for the larger units and of the need within regiments for electrical communications, which had heretofore been regarded as unessential and impractical.
Field and switchboards were soon developed, and those already in existence were improved.
At one end of the scale was Great Britain, with a small but highly developed signal service; and at the other end stood Russia, with a signal service inferior to that of the Union Army at the close of the American Civil War.
The fact that commanders could not control, coordinate, and direct huge modern armies without efficient signal communication quickly became apparent to both the Allies and the driving through Belgium and northern France.
The French used deep buried cable to some extent but generally preferred to string their telephone lines on wooden supports set against the walls of deep open trenches.
Thus electrical communication in the form of the telephone and telegraph gradually extended to the smaller units until front-line platoons were frequently kept in touch with their company headquarters through these mediums.
The first application of the telegraph in time of war was made by the British in the (1861–65), wide use was made of the electric telegraph.Tags: Adult Dating, affair dating, sex dating