After centuries of virtual isolation, during which time international sea travel was forbidden outside of Japan’s immediate fishing shores, Japanese shogunal authorities in 1862 made the unprecedented decision to launch an official delegation to China by sea. Concerned by the fast-changing global environment, they had witnessed the ever-increasing number of incursions into Asia by European powers—not the least of which was Commodore Perry’s arrival in Japan in 1853–54 and the forced opening of a...