Wurmser might have learned from the successes of Buonaparte the advantages of compact movement; yet he was unwise enough to divide his great force into three separate columns, and to place one of these upon a line of march which entirely separated it from the support of the others. He himself, with his centre, came down on the left bank of the Lago di Guarda, with Mantua before him as his mark: his left wing, under Melas, was to descend the Adige, and drive the French from Verona; while the right wing, under Quasdonowich, were ordered to keep down the valley of the Chiese, in the direction of Brescia, and so to cut off the retreat of Buonaparte upon the Milanese;—in other words, to interpose the waters of the Lago di Guarda between themselves and the march of their friends—a blunder not likely to escape the eagle eye of Napoleon.

He immediately determined to march against Quasdonowich, and fight him where he could not be supported by the other two columns. This could not be done without abandoning for the time the blockade of Mantua; but it was not for Buonaparte to hesitate about purchasing a great ultimate advantage by a present sacrifice, however disagreeable. The guns were buried in the trenches during the night of the 31st July, and the French quitted the place with a precipitation which the advancing Austrians considered as the result of terror.

Napoleon meanwhile rushed against Quasdonowich, who had already come near the bottom of the Lake of Guarda. At Salo, close by the lake, and, further from it, at Lonato, two divisions of the Austrian column were attacked and overwhelmed. Augereau and Massena, leaving merely rear-guards at Borghetto and Peschiera, now marched also upon Brescia. The whole force of Quasdonowich must inevitably have been ruined by these combinations, had he stood his ground; but by this time the celerity of Napoleon had overawed him, and he was already in full retreat upon his old quarters in the Tyrol. Augereau and Massena, therefore, countermarched their columns, and returned towards the Mincio. They found that Wurmser had forced their rear-guards from their posts: that of Massena, under Pigeon, had retired in good order to Lonato; that of Augereau, under Vallette, had retreated in confusion, abandoning Castiglione to the Austrians.

Flushed with these successes, old Wurmser now resolved to throw his whole force upon the French, and resume at the point of the bayonet his communication with the scattered column of Quasdonowich. He was so fortunate as to defeat the gallant Pigeon at Lonato, and to occupy that town. But this great new success was fatal to him. In the exultation of victory he extended his line too much towards the right; and this over-anxiety to open the communication with Quasdonowich had the effect of so weakening his centre, that Massena, boldly and skilfully seizing the opportunity, poured two strong columns on Lonato, and regained the position; whereon the Austrian, perceiving that his army was cut in two, was thrown into utter confusion. Some of his troops, marching to the right, were met by those of the French, who had already defeated Quasdonowich in that quarter, and obliged to surrender: the most retreated in great disorder. At Castiglione alone a brave stand was made. But Augereau, burning to wipe out the disgrace of Vallette,[10] forced the position, though at a severe loss. Such was the battle of Lonato. Thenceforth nothing could surpass the discomfiture and disarray of the Austrians. They fled in all directions upon the Mincio, where Wurmser himself, meanwhile, had been employed in revictualling Mantua.

A mere accident had once more almost saved the Imperialist. One of the many defeated divisions of the army, wandering about in anxiety to find some means of reaching the Mincio, came suddenly on Lonato, the scene of the late battle, at a moment when Napoleon was there with only his staff and guards about him. He knew not that any considerable body of the enemy remained together in the neighbourhood; and, but for his presence of mind, must have been their prisoner. The Austrian had not the skill to profit by what fortune threw in his way; the other was able to turn even a blunder into an advantage. The officer sent to demand the surrender of the town was brought blindfolded, as is the custom, to his headquarters; Buonaparte, by a secret sign, caused his whole staff to draw up around him, and when the bandage was removed from the messenger's eyes, saluted him thus: "What means this insolence? Do you beard the French general in the middle of his army?" The German recognised the person of Napoleon, and retreated stammering and blushing. He assured his commander that Lonato was occupied by the French in numbers that made resistance impossible. Four thousand men laid down their arms; and then discovered that, if they had used them, nothing could have prevented Napoleon from being their prize.

Wurmser collected together the whole of his remaining force, and advanced to meet the conqueror. He, meanwhile, had himself determined on the assault, and was hastening to the encounter. They met between Lonato and Castiglione. Wurmser was totally defeated, and narrowly escaped being a prisoner; nor did he without great difficulty regain Trent and Roveredo, those frontier positions from which his noble army had so recently descended with all the confidence of conquerors. In this disastrous campaign the Austrians lost 40,000: Buonaparte probably understated his own loss at 7000. During the seven days which the campaign occupied he never took off his boots, nor slept except by starts. The exertions which so rapidly achieved this signal triumph were such as to demand some repose; yet Napoleon did not pause until he saw Mantua once more completely invested. The reinforcement and revictualling of that garrison were all that Wurmser could show, in requital of his lost artillery, stores, and 40,000 men.

During this brief campaign the aversion with which the ecclesiastics of Italy regarded the French manifested itself in various quarters. At Pavia, Ferrara, and elsewhere, insurrections had broken out, and the spirit was spreading rapidly at the moment when the report of Napoleon's new victory came to re-awaken terror and paralyse revolt. The conqueror judged it best to accept for the present the resubmission, however forced, of a party too powerful to be put down by examples. The Cardinal Mattei, Archbishop of Ferrara, being brought into his presence, uttered the single word peccavi: the victor was contented with ordering him a penance of seven days' fasting and prayer in a monastery: but he had no intention to forget these occurrences whenever another day of reckoning with the Pope should come.

While he was occupied with restoring quiet in the country, Austria, ever constant in adversity, hastened to place 20,000 fresh troops under the orders of Wurmser; and the brave veteran, whose heart nothing could chill, prepared himself to make one effort more to relieve Mantua, and drive the French out of Lombardy. His army was now, as before, greatly the superior in numbers; and though the bearing of his troops was more modest, their gallantry remained unimpaired. Once more the old general divided his army; and once more he was destined to see it shattered in detail.

He marched from Trent towards Mantua, through the defiles of the Brenta, at the head of 30,000; leaving 20,000 under Davidowich at Roveredo, to cover the Tyrol. Buonaparte instantly detected the error of his opponent. He suffered him to advance unmolested as far as Bassano, and the moment he was there, and consequently completely separated from Davidowich and his rear, drew together a strong force, and darted on Roveredo, by marches such as seemed credible only after they had been accomplished.

The battle of Roveredo (Sept. 4) is one of Napoleon's most illustrious days. The enemy had a strongly entrenched camp in front of the town; and behind it, in case of misfortune, Calliano, with its castle seated on a precipice over the Adige, where that river flows between enormous rocks and mountains, appeared to offer an impregnable retreat. Nothing could withstand the ardour of the French. The Austrians, though they defended the entrenched camp with their usual obstinacy, were forced to give way by the impetuosity of Dubois and his hussars. Dubois fell, mortally wounded, in the moment of his glory: he waved his sabre, cheering his men onwards with his last breath. "I die," said he, "for the Republic;—only let me hear, ere life leaves me, that the victory is ours." The French horse, thus animated, pursued the Germans, who were driven, unable to rally, through and beyond the town. Even the gigantic defences of Calliano proved of no avail. Height after height was carried at the point of the bayonet; 7000 prisoners and fifteen cannon remained with the conquerors. The Austrians fled to Levisa, which guards one of the chief defiles of the Tyrolese Alps, and were there beaten again. Vaubois occupied this important position with the gallant division who had forced it. Massena fixed himself in Wurmser's late headquarters at Trent; and Napoleon, having thus totally cut off the field-marshal's communication with Germany, proceeded to issue proclamations calling on the inhabitants of the Tyrol to receive the French as friends, and seize the opportunity of freeing themselves for ever from the dominion of Austria. He put forth an edict declaring that the sovereignty of the district was henceforth in the French Republic, and inviting the people themselves to arrange, according to their pleasure, its interior government.