Note 214 — THE FORMAL TACTICS OF INFANTRY. (continued 4)
Walter Krueger translation
“By concentration is meant the passage from route column to a broader close order formation. It is employed for the purpose of decreasing the depth of a column and for assembly.” (Par. 315 German I. D. R.)
[215] Examples: The approach of the IInd Army to the battlefield of Gravelotte, see Taktik, III, p. 305.
The advance of the 1st Army from its cantonments toward the Bistrits to the battlefield of Königgrätz was a mistake. The army first approached in route columns, then concentrated, again formed route columns, and finally concentrated for action. v. Lettow-Vorbeck, II, pp. 407 and 480. From what I know of the terrain the advance should in this case have been made in assembly formations.