version, , which explained Mahan’s work using examples from Japanese history, published in 1898. The work was used to win public support for increases in the naval budget and copies were distributed to secondary schools across the empire. Ogasawara used his own experiences in the Battle of the Yalu River validate Mahan’s concept of the command of the sea, and the Triple Intervention as an example of Japan’s maritime vulnerability. Ogasawara was later an instructor at the Naval War College, where he continued to stress the importance of sea power. He went onto the reserve list in 1921, but remained a close confidant of Tōgō, and was strongly opposed to the naval reductions proposed during the 1927 Geneva Naval Conference and 1930 London Naval Treaty. After his retirement from active duty, he served as an aide de camp to the Imperial Household Agency, supporting the promotion of Prince Fushimi Hiroyasu to the post of Chief of the Navy General Staff and Ōsumi Mineo as Navy Minister. He was also tutor to the Crown Prince (the future Emperor Hirohito) on naval issues. Ogawasawa was the author of Life of Admiral Togo, a biography of Admiral Heihachiro Togo which was first published in 1921. His eldest son, Meiho Ogasawara became a movie director, and later a movie producer and his younger son, Shojiro Ogasawara became an actor. In 1930, Nikkatsu Studios released a movie on the Battle of Tsushima in the Russo-Japanese War. Titled Gekimetsu (撃滅), it was written by Ogasawara Naganari, directed by his son Meiho, and had his son Shojiro in its cast. His granddaughter, Yasuko Matsui, was also an actress, noted for having starred in over 150 pink films in the late 1960s and 1970s. References Further reading External links 1867 births 1958 deaths People from Saga Prefecture Japanese military personnel of the First Sino-Japanese War Japanese military personnel of the Russo-Japanese War Japanese writers Imperial Japanese Navy admirals Kazoku Ogasawara clan