Beyond all else, the arresting circumstances in the fragmentary pages, perfect in themselves but incomplete in the conception of their author, is the intellectual and the moral kinship they reveal between the soldier who fell just before the crowning humiliation of Gravelotte and the victor of Fere Champenoise, the Yser and the colossal conflict of 1918 to which historians have already applied the name of the Battle of France, rightly to suggest its magnitude. Read the hastily compiled lectures of Foch, the teacher of the Ecole de Guerre, recall the fugitive but impressive words of Foch, the soldier, uttered on the spur of the moment, filled with homely phrase, and piquant figure and underlying all, one encounters the same integral conception of war and of the relation of the moral to the physical, which fills the all too scanty pages of du Picq. "For me as a soldier," writes du Picq, "the smallest detail caught on the spot and in the heat of action is more instructive than all the Thiers and the Jominis in the world." Compare this with Foch explaining to his friend Andre de Mariecourt, his own emotions at the critical hour at Fere Champenoise, when he had to invent something new to beguile soldiers who had retreated for weeks and been beaten for days. His tactical problem remained unchanged, but he must give his soldiers, tired with being beaten to the "old tune" a new air, which would appeal to them as new, something to which they had not been beaten, and the same philosophy appears. Du Picq's contemporaries neglected his warning, they saw only the outward circumstances of the Napoleonic and Frederican successes. In vain du Picq warned them that the victories of Frederick were not the logical outgrowth of the minutiae of the Potsdam parades. But du Picq dead, the Third Empire fallen, France prostrated but not annihilated by the defeats of 1870, a new generation emerged, of which Foch was but the last and most shining example. And this generation went back, powerfully aided by the words of du Picq, to that older tradition, to the immutable principles of war. With surprising exactness du Picq, speaking in the abstract, foretold an engagement in which the mistakes of the enemy would be counterbalanced by their energy in the face of French passivity, lack of any control conception. Forty years later in the Ecole de Guerre, Foch explained the reasons why the strategy of Moltke, mistaken in all respects, failed to meet the ruin it deserved, only because at Gravelotte Bazaine could not make up his mind, solely because of the absence in French High Command of precisely that "Creed of Combat" the lack of which du Picq deplored.