Such was the plan concocted at Vienna, mainly under the influence of the Archduke Charles, who took the [pg.14] command of the army in Italy, while that of the Danube was assigned to the Archduke Ferdinand and Mack, the new Quarter-Master-General. This soldier had hitherto enjoyed a great reputation in Austria, probably because he was the only general who had suffered no great defeat. Amidst the disasters of 1797 he seemed the only man able to retrieve the past, and to be shut out from command by Thugut's insane jealousy of his "transcendent abilities." [[23]] Brave he certainly was: but his mind was always swayed by preconceived notions; he belonged to the school of "manoeuvre strategists," of whom the Duke of Brunswick was the leader; and he now began the campaign of 1805 with the fixed purpose of holding a commanding military position. Such a position the Emperor Francis and Mack had discovered in the weak fortress of Ulm and the line of the River Iller. Towards these points of vantage the Austrians now began to move.
The first thing was to gain over the Elector of Bavaria. The Court of Vienna, seeking to persuade or compel that prince to join the Coalition, made overtures (September 3rd to 6th) with which he dallied for a day or two until an opportunity came of escaping to the fortress of Würzburg. Mack thereupon crossed the River Inn and sought, but in vain, to cut off the Bavarian troops from that stronghold. Accordingly, the Austrian leader marched on to Ulm, where he arrived in the middle of September; and, not satisfied with holding this advanced position, he pushed on his outposts to the chief defiles of the Black Forest, while other regiments held the valley of the River Iller and strengthened the fortress of Memmingen. Doubtless this would have been good strategy, had his forces been equal in numbers to those of Napoleon. At that time the Black Forest was the only [pg.15] [pg.16] physical barrier between France and Southern Germany; the Rhine was then practically a French river; and, only by holding the passes of that range could the Austrians hope to screen Swabia from invasion on the side of Alsace.
BATTLE OF ULM
But Mack forgot two essential facts. Until the Russians arrived, he was too weak to hold so advanced a position in what was hostile ground, now that Bavaria and the other South German States obeyed Napoleon's summons to range themselves on his side. Further, he was dangerously exposed on the north, as a glance at the map will show. Ulm and the line of the Iller formed a strong defence against the south-west: but on the north that position is singularly open: it can be turned from the valleys of the Main, the Neckar, and the Altmühl, all of which conduct an invader to the regions east of Ulm. Indeed, it passes belief how even the Aulic Council could have ignored the dangers of that position. Possibly the fact that Ulm had been stoutly held by Kray in 1796 now induced them to overrate its present importance; but at that time the fortified camp of Ulm was the central knot of vast operations, whereas now it was but an advanced outpost. [[24]] If Francis and his advisers were swayed by historical reminiscences it is strange that they forgot the fate of Melas in Piedmont. The real parallel had been provided, not by Kray, but by the general who was cut off at Marengo. Indeed, in its broad outlines, the campaign of Ulm resembles that of Marengo. Against foes who had thrust their columns far from their base, Napoleon now, as in 1800, determined to deal a crushing blow. On the part of the Austrians we notice the same misplaced confidence, the same lack of timely news, and the same inability to understand Napoleon's plan until his dispositions are complete; while his strategy and tactics in 1805 recall to one's mind the masterly simplicity of design, the subtlety and energy of execution, which led up to his triumph in the plains of Piedmont. [pg.17]
Meanwhile the allies were dissipating their strength. A Russian corps, acting from Corfu as a base, and an English expedition from Malta, were jointly to attack St. Cyr in the south of Italy, raise the country at his rear and compel him to surrender. This plan was left helplessly flapping in the air by a convention which Napoleon imposed on the Neapolitan ambassador. On September 21st Talleyrand induced that envoy to guarantee the neutrality of the kingdom of Naples, all belligerents being excluded from its domains. Consequently St. Cyr's corps evacuated that land and brought a welcome reinforcement to Masséna on the Mincio. Equally skilful was Napoleon's action as regards Hanover. On that side also the allies planned a formidable expedition. From the fortress of Stralsund in Swedish Pomerania, a force of Russians and Swedes, which Gustavus burned to command, was to march into Hanover, and, when strengthened by an Anglo-Hanoverian corps, drive the French from the Low Countries. It is curious to contrast the cumbrous negotiations concerning this expedition—the quarrels about the command, the anxiety at the outset lest Villeneuve should perhaps sail into the Baltic, the delays of the British War Office, the remonstrances of the Czar, and the efforts to avert the jealousy of Prussia—with the serene indifference of Napoleon as to the whole affair. He knew full well that the war would not be decided by diversions at the heel of Italy or on the banks of the Ems, but by the shock of great masses of men on the Danube. He denuded Hanover of French troops, except at its southern fortress of Hameln, so that he could overwhelm the levies of Austria before the Russians came up. In brief, while the Coalition sought, like a Briareus, to envelop him on all sides, he prepared to deal a blow at its heart.
As the first part of the campaign depended almost entirely on problems of time and space, it will be well to follow the chief movements of the hostile forces somewhat closely. The Austrian plan aimed at forestalling the French in the occupation of Swabia; and its [pg.18] apparent success puffed up Mack with boundless confidence. At Ulm he threw up extensive outworks to strengthen that obsolete fortress, extended his lines to Memmingen far on the south, and trusted that the Muscovites would come up long before the French eagles hovered above the sources of the Danube. But at that time the Russian vanguard had not reached Linz in Upper Austria, and not before October 10th did it appear on the banks of the River Inn. [[25]]
Far from being the last to move, the French Emperor outstripped his enemies in the speed of his preparations. Whereas the Austrians believed he would not be able to reach the Danube in force before November 10th, he intended to have 200,000 men in Germany by September 18th. But he knew not at first the full extent of his good fortune: it did not occur to him that the Austrians would cross the Inn: all he asks Talleyrand, on August 23rd, is that such news may appear in the "Moniteur" as will gain him twenty days and give General Bertrand time to win over Bavaria, while "I make my 200,000 men pirouette into Germany." On August 29th the Army of England became the Grand Army, composed of seven corps, led by Bernadotte, Marmont, Davoust, Soult, Lannes, Ney and Augereau. The cavalry was assigned to Murat; while Bessières was in command of the Imperial Guard, now numbering some 10,000 men.
Already the greater part of this vast array was beginning to move inland; Davoust and Soult left some regiments, 30,000 strong, to guard the flotilla, and Marmont detached 14,000 men to defend the coasts of Holland; but the other corps on September 2nd began their march Rhine-wards in almost their full strength. On that day Bernadotte broke up his cantonments in Hanover, and began his march towards the Main, on which so much was to turn. The Elector of Hesse-Cassel now espoused Napoleon's cause. Thus, without meeting any opposition, Bernadotte's columns reached Würzburg at the close of [pg.19] September; there the Elector of Bavaria welcomed the Marshal and gave him the support of his 20,000 troops; and at that stronghold he was also joined by Marmont.
In order to mislead the Austrians, Napoleon remained up to September 23rd at St. Cloud or Paris; and during his stay appeared a Senatus Consultum ordering that, after January 1st, 1806, France should give up its revolutionary calendar and revert to the Gregorian. He then set out for Strassburg, as though the chief blows were to be dealt through the passes of the Black Forest at the front of Mack's line of defence; and, to encourage that general in this belief, Murat received orders to show his horsemen in the passes held by Mack's outposts, but to avoid any serious engagements. This would give time for the other corps to creep up to the enemy's rear. Mack, meanwhile, had heard of the forthcoming junction of the French and Bavarians at Würzburg, but opined that it threatened Bohemia. [[26]]