- growth of practical necessity; the regimental commander
cannot handle 12-16 companies without difficulty, and an intermediate unit, the battalion, is necessary. The battalion is the practical, and the regiment, consisting of 3 or 4 battalions, the ideal unit. Regiments consisting of two battalions do not possess the same advantages, as the regimental staff becomes superfluous during each necessary division of the regiment. Two battalion regiments do indeed facilitate command; they are, however, more expensive in time of peace and are of advantage in action only when formed into brigades of six battalions each, in which case the commander has a compactly organized reserve available.
"The regiment, by reason of its history, the uniformity of its training, the esprit de corps of its officers, and its division into three battalions—thereby facilitating subdivision—is pre-eminently fitted for carrying out definite combat tasks." (Par. 470 German I. D. R.). A glance at the map of the battle of Vionville (5B of the German General Staff work on the Franco-German war) shows that regiments, whenever they entered the field intact, fought as unbroken units throughout the battle, whereas brigade organizations were frequently broken up.
This breaking up of brigades is practically induced by the two regiment brigade organization. (Par. 471 German I. D. R.). When once the brigade commander has assigned sections or points of attack to his regiments, there remains very little for him to do. He can form a reserve only by taking two battalions from one regiment, or one battalion from each. The brigade is, however, not like the regiment, an entity of bodies of troops, but a unit assembled for tactical purposes, which may, without regard to the whole, be increased or diminished by one or more battalions in case of necessity. On the march and in action the brigade organization as a subdivision of the division cannot always be maintained; groups are frequently formed in which the nor-
