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 left for orderlies and mounted messengers, and for troops which are drawn forward. In order to permit a prompt deployment of troops for action, it is necessary to reduce their depth. Columns only are suitable for moving troops. The situation existing at the moment will determine to what extent allowances may be made for the comfort of the troops, or how far considerations of comfort should be ignored in view of readiness for action, and to what extent the depth of the columns should be decreased.

The formations for moving troops (to be employed in marching across country and to be used on the battlefield) should be such as to cause the least discomfort to the troops, should make it possible to avoid obstacles, to utilize cover, facilitate changes of front and direction of march, and permit a prompt deployment in any direction. These formations are columns unless the hostile fire effect makes a deployment into line necessary.

Battle formations should be such as to permit the employment of all weapons (rifles, lances, sabres, and guns). This requirement is not satisfied by columns, but only by the line. Modern fire effect excludes every employment of close order formations under effective hostile fire and compels the most extensive deployment.

Whether line or column is the preferable battle formation is a question belonging to a bygone age. The battles of the British in Spain and at Waterloo, the engagement at Groszbeeren, and the attack of the six battalions of Borke's Brigade (the 8th) at the Katzbach, amply demonstrate that the defeat of the Prussians at Jena was not due to the employment of linear battle formations alone. In a fight with an equal opponent, formed in columns, well trained and disciplined troops, formed in line that allows of the use of all the rifles and is suitable for shock action as well, have always carried off the victory. On the other hand, in the bat-*