The Kaiser was widely credited with the edict “No fathers of families at the front.” Among the French General Staff it was an article of faith that the Germans would not mix reserve units with active units, and this led to the belief that the Germans would not have enough men in the front line to do two things at once: send a strong right wing in a wide sweep through Belgium west of the Meuse and keep sufficient forces at their center and left to stop a French breakthrough to the Rhine.
