The Austrian war called away the emperor and the bulk of his troops, but after it was over he filled Spain with his veterans, increasing the strength of the army there to 300,000 men, under his ablest generals, Soult, Massena, Ney, Marmont, Macdonald and others. They marched through Spain from end to end, yet, though they held all the salient points, the people refused to submit, but from their mountain fastnesses kept up a petty and annoying war. [=Wellington's Career in Portugal and Spain=] Massena, in 1811, invaded Portugal, where Wellington with an English army awaited him behind the strong lines of Torres Vedras, which the ever-victorious French sought in vain to carry by assault. Massena was compelled to retreat, and Soult, by whom the emperor replaced him, was no more successful against the shrewd English general. At length Spain won the reward of her patriotic defence. The Russian campaign of 1812 compelled the emperor to deplete his army in that country, and Wellington came to the aid of the patriots, defeated Marmont at Salamanca, entered Madrid, and forced King Joseph once more to flee from his unquiet throne. [=The Reward of Patriotic Valor=] For a brief interval he was restored by the French army under Soult and Suchet, but the disasters of the Russian campaign brought the reign of King Joseph to a final end, and forced him to give up the pretence of reigning over a people who were unflinchingly determined to have no king but one of their own choice. The story of the Spanish war ends in 1813, when Wellington defeated the French at Vittoria, pursued them across the Pyrenees, and set foot upon the soil of France. [=A Record of Disaster=] While these events were taking place in Spain the power of Napoleon was being shattered to fragments in the north. On the banks of the Niemen, a river that flows between Prussia and Poland, there gathered near the end of June, 1812, an immense army of more than 600,000 men, attended by an enormous multitude of non-combatants, their purpose being the invasion of the empire of Russia. Of this great army, made up of troops from half the nations of Europe, there reappeared six months later on that broad stream about 16,000 armed men, almost all that were left of that stupendous host. The remainder had perished on the desert soil or in the frozen rivers of Russia, few of them surviving as prisoners in Russian hands. Such was the character of the dread catastrophe that broke the power of the mighty conqueror and delivered Europe from his autocratic grasp. [=Napoleon and the Czar at Enmity=]