In preparing to meet the invasion of the Allies Napoleon had to encounter the most formidable difficulties. In Russia and in this German campaign he had seen the bulk of his veteran army dissipated--nay, destroyed. After all his years of incessant drafts on the life-blood of France, six hundred thousand men could not be readily replaced. To replace a fourth of that number with well-disciplined troops was impossible. He could draw none from Germany, for his boasted Confederation of the Rhine had disappeared as a summer cloud, and the very princes on whom he had relied were marching against him in the vast army of the Allies. He could draw none from Italy; for there Eugene Beauharnais was contending, with only about forty-five thousand men, against the much more numerous Austrians; whilst his brother-in-law, Murat, his dashing cavalry general, was gone over to the enemy. Poland would send him no more gallant regiments, for he had grievously deceived the Poles; and his trusted ally of Denmark lay trodden under foot by his former companion-in-arms, Bernadotte. When he turned his eyes over France, which had so long sent forth her hordes to desolate Europe at his bidding, he beheld a prospect not much more cheering. The male population, almost to a man, was drained off, and their bones lay bleaching in the torrid sands of Egypt and Syria, the rugged sierras of Spain and Portugal, in the fens of Holland and the sandy flats of Belgium, on many a heath and plain in Germany, and far away amid the mocking snows of frozen Muscovy. The fields of "la belle France" were being cultivated by old men, by women, and mere boys. Those who had been so long buoyed up under the loss of husbands, fathers, and children, by the delusive mirage of the glory of the "grand nation," now cursed the tyrant whose insane ambition had led such millions of the sons of France to the great slaughter-house of war. The conscriptions, therefore, were very little attended to. Besides this, Buonaparte was well aware that there remained a strong leaven of Jacobinism in Paris and the large towns, and he was afraid of calling out city guards to set at liberty other soldiers, lest, in the hour of his absence and weakness, they should rise and renounce his authority.