The Second Army Corps sustained a severe loss before ever it reached the field of action, for its commander, General Grierson, died suddenly of heart failure in the train between Havre and Rouen upon August 18. Grierson had been for many years Military Attaché in Berlin, and one can well imagine how often he had longed to measure British soldiers against the self-sufficient critics around him. At the very last moment the ambition of his lifetime was denied him. His place, however, was worthily filled by General Smith-Dorrien, another South African {56} veteran whose brigade in that difficult campaign had been recognised as one of the very best. Smith-Dorrien was a typical Imperial soldier in the world-wide character of his service, for he had followed the flag, and occasionally preceded it, in Zululand, Egypt, the Soudan, Chitral, and the Tirah before the campaign against the Boers. A sportsman as well as a soldier, he had very particularly won the affections of the Aldershot division by his system of trusting to their honour rather than to compulsion in matters of discipline. It was seldom indeed that his confidence was abused. Haig and Smith-Dorrien were the two generals upon whom the immediate operations were to devolve, for the Third Army Corps was late, through no fault of its own, in coming into line. There remained the Cavalry Division commanded by General Allenby, who was a column leader in that great class for mounted tactics held in South Africa a dozen years before. It is remarkable that of the four leaders in the initial operations of the German War--French, Smith-Dorrien, Haig, and Allenby--three belonged to the cavalry, an arm which has usually been regarded as active and ornamental rather than intellectual. Pulteney, the commander of the Third Army Corps, was a product of the Guards, a veteran of much service and a well-known heavy-game shot. Thus, neither of the more learned corps were represented among the higher commanders upon the actual field of battle, but brooding over the whole operations was the steadfast, untiring brain of Joffre, whilst across the water the silent Kitchener, remorseless as Destiny, moved the forces of the Empire to the front. The last word in each case lay with the sappers. {57}