The country, however, which had once been set astir could not be pacified so easily. The next to be chastised was the lord of Aidzu, a _daimyo_ who, remaining faithful to the Shogunate to the last, fought desperately in the battle of Fushimi and Toba, and retired to his territory in northern Japan after his defeat. Though he found supporters among the _daimyo_ of the neighboring territories, the forces of the Imperialists were in the meanwhile immensely reinforced, for the _daimyo_ of middle Japan, who had hitherto been neutral, now joined their colleagues of the south. The war began anew in the middle of June in the northern part of Honto. The combined forces of the northern _daimyo_ had to fight against fearful odds, and were successively defeated. The castle of Aidzu was closely invested, and capitulated at the beginning of November. The supporters of the lord of Aidzu also surrendered one after another to the Imperialists. It was soon after this that the adoption of the name of Meidji, as the designation of the opening era, was promulgated at Kyoto. The last chivalrous feat in behalf of the Shogun was performed by the fleet which belonged to the former Shogunate. Before the Revolution the Shogunate had kept a fleet consisting of eight ships, commanded by Admiral Yenomoto, who had received his naval education in Holland. This was the only navy worthy of its name in Japan at that time. After the capitulation of Yedo the Imperial Government ordered half of the men-of-war belonging to the fleet to be given up to itself, allowing the rest to be kept in the hands of the Tokugawa. The admiral was, however, too sorrowful to part with his ships, so that a little before the capitulation of Aidzu, he sailed out with all his fleet from the harbour of Yedo, and occupied Hakodate, a port at the southern end of the island of Yezo. But the forces he was able to land were no match for the victorious Imperialists, who became now quite free in all other quarters. The harbour of Hakodate was soon blockaded, and the Pentagon Fortress was besieged and taken. In June of the following year the whole island of Yezo was subdued, and the new name of Hokkaido was given to it.