It required little experience to know, that, after two singularly unfortunate wars, every precaution should have been taken to bring the Austrian troops into contact with their enemy, under such advantages of position and numbers as might counterbalance the feelings of discouragement with which the bravest soldiers must be affected, in consequence of a course of defeat and disaster so uniform, that there seemed to be a fate in it. In this point of view, the Austrian armies ought to have halted on their own territories, where the river Inn forms a strong and excellent line of defence, extending betwixt the Tyrol and the Danube, into which the Inn empties itself at Passau. Supposing Mack's large force concentrated, with this formidable barrier in front, it seems as if the Austrians might have easily maintained a defensive position until the armies of Russia appeared to support them. If, determined upon the imperious and unjust aggression on Bavaria, Mack found it necessary to advance more to the westward than the line of the Inn, in order to secure the country of the elector, the Lech, in its turn, offered him a position in which he might have awaited the Russians, though their junction must necessarily have been protracted, in proportion to the extent of his advance. But it was the choice of this unlucky tactician to leave Bavaria also behind him, and, approaching the frontiers of France, to take possession of Ulm, Memmingen, and the line of the Iller and Danube, where he fortified himself with great care, as if to watch the defiles of the Black Forest. It can only be thought by those who judge most favourably of Mack's intentions, that, as the passes of that celebrated forest had been frequently the route by which the French invaded Germany, he had concluded it must therefore be by that road, and no other, that their approach on the present occasion was to be expected. Knowing with whom he had to contend, the Austrian general ought to have suspected the direct contrary; for Buonaparte's manœuvres were not more distinguished by talent, than by novelty and originality of design.[124] It is not to be supposed that this great confederacy took at unawares one who had so many reasons for being alert. The Austrian forces, though they had commenced the campaign so hastily, were not more early ready for the field, than were the immense armies of the French empire. The camps at Boulogne, so long assembled on the shores of the Channel, were now to be relieved from their inactivity;[125] and serious as the danger was in which their assistance was required, Buonaparte was perhaps not displeased at finding a fair pretext to withdraw from the invasion to which he had hastily pledged himself. This formidable assemblage of troops, laying aside the appellation of the Army of England, was hereafter distinguished by that of the Grand Army. At the same time, the armies maintained in Holland, and in the North of Germany, were put into motion.