They were soon to learn why their fire was disdained. The allied force, pierced in its center by the French, was flung back in disorder and on all sides broke into a disorderly retreat. The slaughter was frightful. One division, cut off from the army, threw down its arms and surrendered. Two columns rushed upon the ice of a frozen lake. Upon this the fire of the French cannon was turned, the ice splintered and gave way beneath their feet and thousands of the despairing troops perished in the freezing waters. Of the whole army only one corps left the field in order of battle. More than 30,000 prisoners, including twenty generals, remained in Napoleon’s hands, and with them a hundred and twenty pieces of cannon and forty flags. Thus ended the most famous of Napoleon’s battles. The victory of Austerlitz left Germany in Napoleon’s hands, and the remodeling of the map of Europe was one of the greatest that has ever taken place at any one time. Kingdoms were formed and placed under Napoleon’s brothers or favorite generals. His changes in the states of Germany were numerous and radical. Those of south and west Germany were organized into the Confederation of the Rhine, under his protection. Many of the small principalities were suppressed and their territories added to the larger states. As to the “Holy Roman Empire,” a once powerful organization which had long since sunk into a mere shadow, it finally ceased to exist. The empire of France was extended by these and other changes until is spread over Italy, the Netherlands and the south and west of Germany. Changes so great as these could scarcely be made without exciting bitter opposition. Prussia had been seriously affected by Napoleon’s map-making, and in the end its king, Frederick William, became so exasperated that he broke off all communication with France and began to prepare for war. THE CONQUEST OF PRUSSIA It is by no means impossible that Napoleon had been working for this. It is certain that he was quick to take advantage of it. While the Prussian king was slowly collecting his troops and war material, the veterans of France were already on the march and approaching the borders of Prussia. The hasty levies of “Frederick William were no match for the war-hardened French, the Russians failed to come to their aid, and on the 4th of October, 1806, the two armies met at Jena. The Prussians proved incapable of withstanding the impetuous attack of the French and were soon broken and in panic and flight. Nothing could stop them. Reinforcements coming up, 20,000 in number, were thrown across their path, but in vain, being swept away by the fugitives and pushed back by the triumphant pursuers.