Japan. Organization Internally operating divisions Military Affairs Bureau Mobilization Bureau Technical Bureau Personnel Bureau Training Bureau Medical Bureau Shipyard Bureau Naval Construction Bureau Legal Bureau Administrative/Accounting Bureau Externally operating divisions Navy Aviation Bureau Navy Academy Naval War College Naval Accounting School Navy Medical School Naval Engineering School Submarine Division Canals and Waterways Division Naval Technical Department Naval Tribunal Tokyo Naval Tribunal Chemical Warfare Division Radio and Radar Division Supply and Transport Bureau Naval Construction Division Naval Maintenance & Repair Division Special Attack Weapons Division Emergency Reaction Division Naval Aviation Training Division Naval Intelligence Division Ministers of the Navy of Japan By law, Navy Ministers had to be appointed from active duty admirals or vice-admirals. Naval Lords under the Ministry of War Katsu Kaishū Kawamura Sumiyoshi Enomoto Takeaki (28 February 1880 – 7 April 1881) Nakamuta Kuranosuke Kabayama Sukenori Naval Ministers under the Meiji Constitution See also Imperial Japanese Navy General Staff References Notes Books External links "Foreign Office Files for Japan and the Far East". Adam Matthew Publications. Imperial Japanese Navy Navy Politics of the Empire of Japan 1872 establishments in Japan 1945 disestablishments in Japan