Had chance, which is the major element in equal combats, foiled him at Donauwörth or broken his attempt at Blenheim, the march to the Danube would still remain a great thing in history. Had Tallard refused battle on that day, as he certainly should have done, the march to the Danube would still deserve its great place in the military records of Europe. * * * * * When we have seized the fact that Marlborough's great march was but a general strategic movement of which the action at Blenheim was the happy but accidental close, we must next remark that the advance to the Danube was the more meritorious, and gives the higher lustre to Marlborough's fame as a general, from the fact that it was an attempt involving a great military hazard, and that yet that attempt had to be made in the face of political difficulties of peculiar severity. In other words, Marlborough was handicapped in a fashion which lends his success a character peculiar to itself, and worthy of an especial place in history. This handicap may be stated by a consideration of three points which cover its whole character. The first of these points concerns the physical conditions of the move; the other two are peculiar to the political differences of the allies. It was in the nature of the move that a high hazard was involved in it. The general had calculated, as a general always must, the psychology of his opponent. If he were wrong in his calculation, the advance on the Danube could but lead to disaster. It was for him to judge whether the French were so nervous about the centre of their position upon the Rhine as to make them cling to it to the last moment, and tend to believe that it was either along the Moselle or (when he had left that behind) in Alsace that he intended to attack. In other words, it was for him to make the French a little too late in changing their dispositions, a little too late in discovering what his real plan was, and therefore a little too late in massing larger reinforcements upon the Upper Danube, where he designed to be before them. Marlborough guessed his opponent's psychology rightly; the French marshals hesitated just too long, their necessity of communicating with Louis at Versailles further delayed them, and the great hazard which he risked was therefore risked with judgment. But a hazard it remained until almost the last days of its fruition. The march must be rapid; it involved a thousand details, each requiring his supervision and his exact calculation, his knowledge of what could be expected of his troops, and his survey of daily supply. There was another element of hazard. Arrived at his destination upon the plains of the Danube, Marlborough would be very far from any good base of supply.