With his genius, however, for changing failure into success Napoleon had already turned his designs elsewhere. With the splendid army with which he contemplated the humiliation of England, he now marched against Austria.
After defeating the Austrians in several engagements Napoleon met the combined Russian and Austrian forces at Austerlitz on the anniversary of the day on which he had been crowned as Emperor. And Fortune, which had crowned him then in Paris, now crowned his genius on the battlefield by the greatest of all his victories. After prodigious slaughter the Russians and Austrians were completely routed, losing thousands of prisoners. The treaty of Pressburg followed, in which the Austrian Emperor, Francis the First, was compelled to give up large slices of territory to France, and the Russians as quickly as possible withdrew into their own country.
But this was only the beginning of the wars that Napoleon thence-forward was engaged in. The kingdom of Prussia declared war against France, and Napoleon marched against the Prussians and defeated them at the battle of Jena.
Russia, however, was ready to make peace with France, for after Jena Napoleon turned his attention to the Russians and defeated them at Friedland. Then the Czar of Russia and Napoleon met on a raft which was anchored in the middle of the river Niemen and swore eternal friendship.
This was called the Treaty of Tilsit. As England was now the only great nation that continued to be the enemy of France, Napoleon had made arrangements in this treaty that were designed to cripple England's trade and do as much damage to her as was possible. Moreover, the conqueror had decided that henceforth there were to be no neutral nations. Either the other countries must aid him in his trade war against England and in other ways should he desire, or take the consequences of braving his anger. With this policy in his mind Portugal was invaded and the royal family was driven from the country to South America where they sought refuge in the country of Brazil. Spain had sided with France against Portugal, but Napoleon then humiliated and dominated Spain. He used a far greater number of men than was necessary for his Portuguese invasion, and turned them against the Spaniards, many of whose most important forts had been taken by the French soldiers through treachery as well as by stratagem. When the conquest of Spain was ended Napoleon placed his brother, Joseph, on the Spanish throne.
Austria, however, was preparing for another struggle against Napoleon. Though continually defeated by the French, the Austrians lost no chance of turning on them or taking any opportunity that might bring success against the victorious soldiers of Napoleon. But this only brought upon the Austrians the further defeat of Wagram and the loss of additional territory to Napoleon.
But now fortune began to go against the brilliant soldier who had seldom lost a battle and practically never had been defeated. The Russians did not like the alliance with France that had been imposed upon them at Tilsit and in spite of the Czar's vows of friendship were ready to turn against Napoleon on the first opportunity. In fact the Czar had become directly angered at Napoleon for the following reason.
Although Napoleon had made himself Emperor there was no heir to the French throne. As it seemed that Josephine would remain childless, Napoleon conceived the plan of divorcing her and marrying some high born lady whose alliance with him would strengthen the bonds between her country and that of the French. He had negotiated with the Russian Czar for the hand of a Russian princess, but before the arrangements had been completed he married an Austrian duchess named Marie Louise.
This turned Russia into the scale against Napoleon, who had already dealt with the Russians in a high handed manner. So the Czar entered into a close alliance with England against the conqueror.
Then Napoleon made the greatest mistake of all his brilliant career. With all Europe in unrest against him, he nevertheless conceived the plan of invading Russia and raised a great army for this purpose. Russia was and is one of the most difficult countries in all Europe in which to carry on a military invasion. The country is so cold and barren and the distances are so great that any invading army has great difficulty in transporting its supplies and marching the required distances. Napoleon had almost always relied for his supplies on the countries he had conquered and believed that it was always possible for large armies to subsist on forage and the supplies of the conquered inhabitants. To a large extent he used this policy in his invasion of Russia and it brought about his downfall. With an army of four hundred thousand men he entered Russia and advanced into the interior. The Russians constantly retreated before him and laid waste everything in his path. Towns were burned, crops were destroyed and cattle were driven away, as Napoleon led his forces toward the ancient and historic city of Moscow.