Fortunately for Italy, the Austrians had been unsuccessful in the north, and the emperor, with the hope of gaining the alliance of France and breaking the compact between Italy and Prussia, decided to cede Venetia to Louis Napoleon. His purpose failed. All Napoleon did in response was to act as a peacemaker, while the Italian king refused to recede from his alliance. Though the Austrians were retreating from a country which no longer belonged to them, the invasion of Venetia by the Italians continued, and several conflicts with the Austrian army took place. [=The Fleets in the Adriatic=] But much the most memorable event of this brief war occurred on the sea, in the most striking contest of ironclad ships between the American civil war and the Japan-China contest. Both countries concerned had fleets on the Adriatic. Italy was the strongest in naval vessels, possessing ten ironclads and a considerable number of wooden ships. Austria's ironclad fleet was seven in number, plated with thin iron and with no very heavy guns. In addition there was a number of wooden vessels and gunboats. But in command of this fleet was an admiral in whose blood was the iron which was lacking on his ships, Tegethoff, the Dewey of the Adriatic. Inferior as his ships were, his men were thoroughly drilled in the use of the guns and the evolutions of the ships, and when he sailed it was with the one thought of victory. Persano, the Italian admiral, as if despising his adversary, engaged in siege of the fortified island of Lissa, near the Dalmatian coast, leaving the Austrians to do what they pleased. What they pleased was to attack him with a fury such as has been rarely seen. Early on July 20, 1866, when the Italians were preparing for a combined assault of the island by land and sea, their movement was checked by the signal displayed on a scouting frigate: "Suspicious-looking ships are in sight." Soon afterwards the Austrian fleet appeared, the ironclads leading, the wooden ships in the rear. The battle that followed has had no parallel before or since. The whole Austrian fleet was converted into rams. Tegethoff gave one final order to his captains: "Close with the enemy and ram everything grey." Grey was the color of the Italian ships. The Austrian were painted black, so as to prevent any danger of error. Fire was opened at two miles distance, the balls being wasted in the waters between the fleets, "Full steam ahead," signalled Tegethoff. On came the fleets, firing steadily, the balls now beginning to tell. "Ironclads will ram and sink the enemy," signalled Tegethoff. It was the last order he gave until the battle was won. [=The Sinking of the "Re d'Italia"=]