However, when his father suddenly died in 1868 and he became heir, Japan was already in the midst of the Boshin War leading to the Meiji Restoration. Quick to see the direction in which the wind was blowing, he pledged loyalty to the Imperial forces, and led his troops against Tokugawa partisans in Mutsu Province. His forces were armed with western rifles and accompanied by British military advisors, giving him a much greater strength than their small numbers might have indicated.
