In the fourth year of Wellington’s struggle in Spain the Tsar Alexander, tired of submitting to Napoleon’s mastery, defiantly opened his ports to trade with Britain. Napoleon thereupon declared war on him, and marched a vast army of 600,000 men into Russia. A miserable, crushed remnant of 20,000 men was all that struggled back to Germany. This terrible blow led to a general rising of European powers against Napoleon. Russia, Prussia, Austria, and Sweden allied their forces, and Napoleon found himself beset on all sides, and with no army to meet his foes. After the first outburst of dismay, France rallied to him as of old, and gave him the new army for which he asked. The terrible waste of life during the stormy years since the Revolution had pressed heavily on his people, and now half-grown lads of seventeen were called to the standards. They came willingly, and once more the old enthusiasm prevailed. Within six months Napoleon had 200,000 men ready to meet the Russians and Prussians on the Elbe. Twice he smote the allies, and forced them to seek an armistice. Then the fortune of war abandoned him, and at Leipzig, in what the Germans call “the battle of the nations,” he was defeated and forced to retreat to France. By this time success had crowned Wellington’s efforts in Spain. He had made satisfactory soldiers of the Portuguese, and the Spaniards had greatly improved. While Napoleon was marching into Russia, Wellington had stormed Ciudad Rodrigo and Badajoz, and had won a great battle at Salamanca, where he “beat 40,000 men in forty minutes.” This battle was his masterpiece. “There was no mistake,” he said; “everything went as it ought, and there never was an army so beaten in so short a time.” Then Wellington took Madrid, which had been four years in the hands of the enemy; but as the French massed their forces against him, he had to retire towards the Portuguese border. In 1813 he attacked the French at Vittoria, routed them, cut off their retreat, and drove them back across the Pyrenees with the loss of every cannon and wagon which they possessed. While the allies were swarming into France, Wellington, with 100,000 veteran troops, stood ready to fall upon her. The end now rapidly approached. Napoleon struggled heroically with the remnant of the army which had been defeated at Leipzig, but in vain. Time after time he checked the invaders; but numbers triumphed at last, and the allies entered Paris on March 31, 1814, where the fickle populace received them with shouts of joy.