Imperial Japanese Navy General Staff

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The Imperial Japanese Navy General Staff or Gunreibo Socho, was in charge of Imperial Japanese Navy planning and operations. It was headed by an Admiral headquartered in Tokyo. In 1941 the Chief of the Navy General Staff was Admiral Osami Nagano. He reported directly to the Imperial General Headquarters and cooperated with the Minister of the Navy. It was organized as follows:

  • 1st Operations Bureau - included the Combined Fleet and the naval aviation
  • 2d Weapons and Mobilization Bureau
  • 3d Intelligence Bureau
  • 4th Communications Bureau
  • Naval Districts
  • Combined Fleet - The main battle fleet
  • China Theater Fleet
Imperial Japanese Navy
Major battles List of ships List of aircraft List of weapons Main admirals