With her will or against it, by the impulse of enthusiasm still left or under the law of good pleasure, France followed her insatiable master upon the ever open battle-fields. Napoleon was not deceived as to his arbitrary measures. "I wish to call out 30,000 men by the conscription of 1810," he wrote on the 21st March to General Lacuée, director-general of the reviews and conscription; "I am obliged to delay the publication of the 'Senatus- consulte,' which can only be done when all the documents are published. Let the good departments be preferred in choosing. The levy for France generally will only be one fourth of this year's conscription. The prefects might manage it without letting the public know, since there is no occasion for their assembling or drawing lots."
Financial difficulties also began to be felt. For a long time, by war contributions and exactions of every kind imposed upon the conquered countries, Napoleon had formed a military treasury, which he alone managed, and without any check. This resource allowed him to do without increasing taxes or imposing additional burdens. The funds, however, became exhausted, and war alone could renew them. "Reply to Sieur Otto," he wrote on the 1st April, 1809, to Champagny, "that I will have nothing said about subsidies. It is not at all the principle of France. It was well enough under the ancient government, because they had few troops, but at the present day the power of France, and the energy impressed upon my peoples, will produce as many soldiers as I wish, and my money is employed in equipping them and putting them on the field."
Negotiations were still being carried on. The fifth coalition was secretly formed, and diplomatic plots were everywhere joining their threads. Napoleon strove to engage Russia in a common declaration against Austria; England enrolled against France the new government just established at Constantinople by revolution. On both sides the preparations for war became more patent and hurried. Metternich complained at Paris of the hostile attitude of France, and announced the reciprocity imposed upon his master. On the 1st April, Napoleon wrote, "Get articles put in all the journals upon all that is provoking or offensive for the French nation in everything done at Vienna. You can go as far back as the first arming. There must be an article of this tendency every day in the Journal de l'Empire, or the Publiciste, or the Gazette de France. The aim of these articles is to prove that they wish us to make war."
In France the decided, if not expressed, wish of the Emperor Napoleon, and in Austria the patriotic indignation and warlike excitement of the court and army, must necessarily have brought on a rupture; and the most trifling pretext was enough to cause the explosion. The arrest of a French courier by the Austrians at Braunau, the violation of the imperial territory by the troops of Marshal Davout then posted at Wurzburg, provoked hostilities several days sooner than Napoleon expected; and Metternich had already asked for his passports when, on the 10th April, the Archduke Charles crossed the Inn with his army. The Tyrol at the same time rose in insurrection under the orders of a mountain innkeeper, Andrew Hofer; and the Bavarian garrisons were everywhere attacked by hunters and peasants. Like the Spanish, the Tyrolese claimed the independence of their country.
The troops of the Emperor Napoleon already covered Germany; Davout being at Ratisbon, Lannes at Augsburg, and Masséna at Ulm. Marshal Lefebvre commanded the Bavarians, Augereau was appointed to lead the Wurtembergers, the men of Baden and Hesse; the Saxons were placed under the orders of Bernadotte. On the evening of the 9th April, the Archduke Charles wrote to the King of Bavaria that his orders were to advance, and treat as enemies all the forces which opposed him; that he fondly trusted that no German would resist the liberating army on its march to deliver Germany. The Emperor Napoleon had already offered to the Kings of Saxony and Bavaria one of his palaces in France as an asylum, should they find themselves compelled to temporarily abandon their capitals. The King of Bavaria set out for Augsburg.
The unexpected movement of his enemies modified Napoleon's plan of attack. A delay in the arrival of the despatches sent to Major-General Berthier caused some difficulty in the first operations of the French army. When the emperor arrived at Donauwerth, on the morning of the 17th, his army was spread over an extent of twenty-five leagues, and was in danger of being cut in two by the Archduke Charles. It was Napoleon's care and study on beginning the campaign to avoid this danger, which soon afterwards he subjected his adversary to. The Austrians, after passing the Isar at two places, and driving back the Bavarians who had been appointed to defend the passage, advanced towards the Danube.
Already, before touching Donauwerth, Napoleon's orders had begun the concentration of his forces. Masséna was at Augsburg, and received the order to march upon Neustadt, and similarly Davout left Ratisbon to advance to the same place. The Archduke Charles was also striving to reach it, hoping to gain upon the French by speed, and pass between the divisions posted at Ratisbon and Augsburg. This manoeuvre was baffled by Napoleon's prompt decision. "Never was there need for more rapidity and activity of movement than now," he wrote on the 18th to Masséna. "Activity, activity, speed! Let me have your assistance."
The emperor's lieutenants did not fail him in this brilliant and scientific movement, everywhere executed with an ability and precision worthy of the great general who had conceived it. The Archduke Charles was a consummate tactician, but often his prudence degenerated into hesitation—a dangerous fault in presence of the most overpowering military genius whom the world had yet beheld. Napoleon himself said of Marshal Turenne that he was the only general whom experience had made more daring. A long military experience had not exercised that happy effect on the archduke; he still felt his way, and neglecting to take advantage of the concentration of his forces, dispersed the different parts of his army. The chastisement was not slow in following the fault. On the 19th, Marshal Davout, ascending the Danube from Ratisbon to Abensberg, met and defeated the Austrian troops at Fangen, thus being able to effect his junction with the Bavarians. On the 20th, the emperor attacked the enemy's lines at several points, and forced his way through them towards Rohr after several active engagements, thus securing the point of Abensberg, and separating the Archduke Charles from General Hiller and the Archduke Louis. On the 21st, this last part of the enemy's army precipitated itself in a body upon the important position of Landshut, where all the Austrian war material was collected, with a large number of wounded; but at the same moment the emperor himself came up, eagerly followed by Lannes and Bessières, commanding their regiments. Masséna also made haste to join them. The bridges on the Isar were all attacked at once, and bravely defended by the Austrians: when carried they were already in flames. The Archduke Charles, however, attacking Ratisbon, which Davout was obliged to leave protected only by one regiment, easily took possession of that important place, commanding both banks of the Danube. He was thus, on the 22nd, before Eckmühl opposite Davout. Informed of this movement, which he had partly guessed from the noise of the cannon on the 21st, the emperor directed the main body of his army towards Eckmühl. His troops had already been fighting for three days, and Napoleon asked a fresh effort from them. "It is four o'clock," he wrote to Davout, "I have resolved to march, and shall be upon Eckmühl about midday, and ready to attack the enemy vigorously at three o'clock. I shall have with me 40,000 men. I shall be at Ergoltsbach before midday. If the cannon are heard I shall know I am to attack. If I don't hear it, and you are ready for the attack, fire a salvo of ten guns at twelve, another at one, and another at two. I am determined to exterminate the army of the Archduke Charles to-day, or at the latest to-morrow."
The day was not finished, and the cuirassiers were still fighting by moonlight to carry and defend the Ratisbon highway, yet the victory was decisive. The Archduke Charles was beaten, and falling back upon Ratisbon, he, during the night, took the wise step of evacuating the town and withdrawing into Bohemia, where General Bellegarde and his troops awaited him. Henceforth the Austrian army formed two distinct bodies. On the 23rd, Napoleon marched upon Ratisbon, which bravely defended itself. Slightly wounded in the foot by a ball, the emperor remained the whole day on horseback, Marshal Lannes directing the assault. At one moment the soldiers hesitating because the Austrians shot down one after another of those who carried the ladders, Lannes seized one, and shouted, "I shall show you that your marshal has not ceased to be a grenadier." His aides- de-camp went before him, and they themselves led the troops to the escalade. At last the gates were opened, and Napoleon entered Ratisbon.
He spent three days there, preparing his movement of attack against Vienna, which was slightly and badly defended, fortifying his positions, and taking precautions against an unexpected return of the Archduke Charles. At the same time, by his proclamations to the army, as well as by his letters to the princes of the Rhenish Confederation, he spread throughout all Europe his inebriation with success, and the declaration of his projects.