薩長同盟
During the Meiji Restoration, after the surrender of Edo in 1868 during the Boshin War to forces loyal to the Satchō Alliance, Enomoto refused to deliver up his warships, and escaped to Hakodate in Hokkaido with the remainder of the Tokugawa Navy and a handful of French military advisers and their leader Jules Brunet. His fleet of eight steam warships was the strongest in Japan at the time.