The war was conducted, as I have said, by various allies. Its success depended, therefore, upon various commanders regarded as coequal, acting as colleagues rather than as principals and subordinates. But the story of the great march to the Danube and its harvest at Blenheim, which we are about to review, sufficiently proves that the deciding genius in the whole affair was that of John Churchill, Duke of Marlborough. The plan was indeed Eugene’s; and in the battle itself he shared the glory with his English friend and colleague. Again, the British troops present were few indeed compared with the total of the allied forces. At Blenheim, in particular, they amounted to less than a third of the numbers present. The excellence of their material, however, their magnificent work at the Schellenberg and on Blenheim field itself, coupled with the fact that the general to whom the final success is chiefly due was the great military genius of this country, warrants the historian in classing this battle among British actions, and in treating its story as a national affair.
I will approach the story of the campaign and of the battle by a conspectus of the field of war in which Marlborough was so unexpectedly to show the military genius which remains his single title to respect and his chief claim to renown.
PART II
THE EARLY WAR
In order to grasp the strategic problem presented to Marlborough and the allies in the spring of 1704, it is first necessary to understand the diplomatic position at the outbreak of the war, and the military disposition of the two years 1702 and 1703, and thus the general position of the armies which preceded Marlborough’s march to the Danube.
Louis XIV. recognised his grandson as king of Spain late in 1700. The coalition immediately formed against him was at first imperfect. Savoy, with its command of the passes over the Alps into Austrian territory, was in Louis’ favour. England, whose support of his enemies was (for reasons to be described) a capital factor in the issue, had not yet joined those enemies. But, from several causes, among the chief of which was Louis’ recognition of the Pretender as king of England after James the II.’s death, the opinion of the English aristocracy, and perhaps of the English people, was fixed, and in the last months of 1701 the weight of England was thrown into the balance against France.