But Garibaldi persisted in his design. When his way was barred by the garrison of Messina he tuned aside to Catania, where he embarked with 2,000 volunteers, declaring he would enter Rome as a victor, or perish beneath its walls. He landed at Melito on the 24th of August, and threw himself at once, with his followers, into the Calabrian mountains. But his enterprise was quickly and disastrously ended. General Cialdini despatched a division of the regular army, under Colonel Pallavicino, against the volunteer bands. At Aspromonte, on the 28th of August, the two forces came into collision. A chance shot was followed by several volleys from the regulars. Garibaldi forbade his men to return the fire of their fellow-subjects of the Italian kingdom. He was wounded, and taken prisoner with his followers, a few of whom had been slain in the short combat. A government steamer carried the wounded chief to Varignano, where he was held in a sort of honorable imprisonment, and was compelled to undergo a tedious and painful operation for the healing of his wound. He had at least the consolation that all Europe looked with sympathy and interest upon the unfortunate hero; and a general sense of relief was felt when, restored to health, he was set free, and allowed to return to his rocky island of Caprera. Victor Emmanuel was seeking to accomplish his end by safer means. The French garrison of Rome was the obstacle in his way, and this was finally removed through a treaty with Louis Napoleon in September, 1864, the emperor agreeing to withdraw his troops during the succeeding two years, in which the pope was to raise an army large enough to defend his dominions. Florence was to replace Turin as the capital of Italy. This arrangement created such disturbances in Turin that the king was forced to leave that city hastily for his new capital. In December, 1866, the last of the French troops departed from Rome, in spite of the efforts of the pope to retain them. By their withdrawal Italy was freed from the presence of foreign soldiers for the first time probably in a thousand years. In 1866 came an event which reacted favorably for Italy, though her part in it was the reverse of triumphant. This was the war between Prussia and Austria. Italy was in alliance with Prussia, and Victor Emmanuel hastened to lead an army across the Mincio to the invasion of Venetia, the last Austrian province in Italy. Garibaldi at the same time was to invade the Tyrol with his volunteers. The enterprise ended in disaster. The Austrian troops, under the Archduke Albert, encountered the Italians at Custozza and gained a brilliant victory, despite the much greater numbers of the Italians.