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Order of Battle of the Navy, Army, and Air Force will appear here

To appear here.

Navy Order of Battle

[SIZE=3]The Japanese Order of battle on 1/1/1922[/SIZE]

Northeastern Fleet
Battle Group Ise (HQ at Aomori)
- Ise Division: BB Ise, BB Hyuga
- III. Cruiser Division: AC Iwate, AC Izumo
- IV. Cruiser Division: CL Kuma, CL Kiso, CL Tatsuta, CL Kitakama
I. Destroyer Group (HQ at Aomori)
- I. Destroyer Division: DD Yakaze, DD Tachikaze, DD Namikaze, DD Hatakaze
- II. Destroyer Division: DD Okikaze, DD Matsukaze, DD Nadakaze, DD Yunagi
- I. Light Destroyer Division: K-01, K-02, K-03, K-04, K-05
- II. Light Destroyer Division: K-06, K-07, K-08, K-09, K-10
- III. Light Destroyer Division: K-11, K-12, K-13, K-14, K-15
I. Mine Group (HQ at Nobeji)
- I. Mine Division: L-01, L-02, L-03, L-04, L-05, L-06, L-07, L-08, L-09
- II. Mine Division: M-01, M-02, M-03, M-04, M-05, M-06
I. Gunboat Group (stationed at Nobeji)
- I. Heavy Gunboat Division: F-01, F-02, F-03, F-04, F-05
- II. Heavy Gunboat Division: F-06, F-07, F-08, F-09, F-10
- I. Light Gunboat Division: G-01, G-02, G-03, G-04
- II. Light Gunboat Division: G-05, G-06, G-07, G-08
I. Chase Group (HQ at Nobeji)
- I. Heavy Sub Chase Division: A-01, A-02, A-03, A-04, A-05
- II. Heavy Sub Chase Division: A-06, A-07, A-08, A-09, A-10
- I. Light Sub Chase Division: S-01, S-02, S-03, S-04, S-05, S-06, S-07
- II. Light Sub Chase Division: S-08, S-09, S-10, S-11, S-12, S-13, S-14


Southeastern Fleet
Battle Group Fuso (HQ at Edo)
- Fuso Division: BB Fuso, BB Yamashiro
- Carrier Division: CVL Hosho
- I. Cruiser Division: AC Asama, AC Azuma, AC Jakumo, AC Iwaki
- II. Cruiser Division: CL Yura, CL Kinu, CL Abukuma, CL Tama, CL Isuzu
II. Destroyer Group (HQ at Funabashi)
- III. Destroyer Division: DD Shimakaze, DD Hokaze, DD Nokaze, DD Harukaze
- IV. Destroyer Division: DD Sawakaze, DD Hakaze, DD Kamikaze, DD Asanagi
- IV. Light Destroyer Division: K-16, K-17, K-18, K-19, K-20
- V. Light Destroyer Division: K-21, K-22, K-23, K-24, K-25
- VI. Light Destroyer Division: K-26, K-27, K-28, K-29, K-30
II. Mine Group (HQ at Chiba)
- III. Mine Division: L-10, L-11, L-12, L-13, L-14, L-15, L-16, L-17, L-18
- IV. Mine Division: M-07, M-08, M-09, M-10, M-11, M-12
II. Gunboat Group (HQ at Yokohama)
- III. Heavy Gunboat Division: F-11, F-12, F-13, F-14, F-15
- IV. Heavy Gunboat Division: F-16, F-17, F-18, F-19, F-20
- III. Light Gunboat Division: G-09, G-10, G-11, G-12
- IV. Light Gunboat Division: G-13, G-14, G-15, G-16
II. Chase Group (HQ at Ichihara)
- III. Heavy Sub Chase Division: A-11, A-12, A-13, A-14, A-15
- IV. Heavy Sub Chase Division: A-16, A-17, A-18, A-19, A-20
- III. Light Sub Chase Division: S-15, S-16, S-17, S-18, S-19, S-20, S-21
- IV. Light Sub Chase Division: S-22, S-23, S-24, S-25, S-26, S-27, S-28


Southwestern Fleet
Battle Group Nagato (HQ at Omuta)
- Nagato Division: BB Nagato, BB Mutsu
- V. Cruiser Division: AC Tokiwa, AC Kasuga
- VI. Cruiser Division: CL Tenryu, CL Nagara, CL Oi, CL Natori
III. Destroyer Group (HQ at Shimabara)
- V. Destroyer Division: DD Minekaze, DD Shiokaze, DD Yukaze, DD Asakaze
- VI. Destroyer Division: DD Akikaze, DD Numakaze, DD Oite, DD Hayate
- VII. Light Destroyer Division: K-31, K-32, K-33, K-34, K-35
- VIII. Light Destroyer Division: K-36, K-37, K-38, K-39, K-40
- IX. Light Destroyer Division: K-41, K-42, K-43, K-44, K-45
III. Mine Group (HQ at Omuta)
- V. Mine Division: L-19, L-20, L-21, L-22, L-23, L-24, L-25, L-26, L-27
- VI. Mine Division: M-13, M-14, M-15, M-16, M-17, M-18
III. Gunboat Group (HQ at Ookawa)
- V. Heavy Gunboat Division: F-21, F-22, F-23, F-24, F-25
- VI. Heavy Gunboat Division: F-26, F-27, F-28, F-29, F-30
- V. Light Gunboat Division: G-17, G-18, G-19, G-20
- VI. Light Gunboat Division: G-21, G-22, G-23, G-24
III Chase Group (HQ at Shimabara)
- V. Heavy Sub Chase Division: A-21, A-22, A-23, A-24, A-25
- VI. Heavy Sub Chase Division: A-26, A-27, A-28, A-29, A-30
- V. Light Sub Chase Division: S-29, S-30, S-31, S-32, S-33, S-34, S-35
- VI. Light Sub Chase Division: S-36, S-37, S-38, S-39, S-40, S-41, S-42


Submarine Fleet
Submarine group (stationed at Sakura-jima submarine base, Kagoshima)
Large Submarine Group: I-1, I-2
Small Submarine Group: I-3, I-4, I-5, I-6, I-7

Imperial Japanese Navy on 1/1/1923

Minister of Navy: Admiral Kato Tomosaburo
Vice-minister of Navy: Vice Admiral Ide Kenji
Chief of Naval General Staff: Admiral Yamashita Gentaro
Vice Chief of Naval General Staff: Vice Admiral Kato Hiroharu
Commander-in-Chief Combined Fleet: Vice Admiral Takeshita Isamu

Northeastern Fleet (1st Fleet)
Commander-in-Chief 1st Fleet: Vice Admiral Takeshita Isamu
Battle Group Ise (HQ at Aomori)
- Ise Division: BB Ise, BB Hyuga
- III. Cruiser Division: AC Iwate, AC Izumo
- IV. Cruiser Division: CL Kuma, CL Kiso, CL Tatsuta, CL Kitakama
I. Destroyer Group (HQ at Aomori)
- I. Destroyer Division: DD Yakaze, DD Tachikaze, DD Namikaze, DD Hatakaze
- II. Destroyer Division: DD Okikaze, DD Matsukaze, DD Nadakaze, DD Yunagi
- I. Light Destroyer Division: K-01, K-02, K-03, K-04, K-05
- II. Light Destroyer Division: K-06, K-07, K-08, K-09, K-10
- III. Light Destroyer Division: K-11, K-12, K-13, K-14, K-15
I. Mine Group (HQ at Nobeji)
- I. Mine Division: L-01, L-02, L-03, L-04, L-05, L-06, L-07, L-08, L-09
- II. Mine Division: M-01, M-02, M-03, M-04, M-05, M-06
I. Gunboat Group (HQ at Nobeji)
- I. Heavy Gunboat Division: F-01, F-02, F-03, F-04, F-05
- II. Heavy Gunboat Division: F-06, F-07, F-08, F-09, F-10
- I. Light Gunboat Division: G-01, G-02, G-03, G-04
- II. Light Gunboat Division: G-05, G-06, G-07, G-08
I. Chase Group (HQ at Nobeji)
- I. Heavy Sub Chase Division: A-01, A-02, A-03, A-04, A-05
- II. Heavy Sub Chase Division: A-06, A-07, A-08, A-09, A-10
- I. Light Sub Chase Division: S-01, S-02, S-03, S-04, S-05, S-06, S-07
- II. Light Sub Chase Division: S-08, S-09, S-10, S-11, S-12, S-13, S-14


Southeastern Fleet (2nd Fleet)
Commander-in-Chief 2nd Fleet: Vice Admiral Suzuki Kantaro
Battle Group Fuso (HQ at Edo)
- Fuso Division: BB Fuso, BB Yamashiro
- Carrier Division: CVL Hosho
- I. Cruiser Division: AC Asama, AC Azuma, AC Jakumo, AC Iwaki
- II. Cruiser Division: CL Yura, CL Kinu, CL Abukuma, CL Tama, CL Isuzu
II. Destroyer Group (HQ at Funabashi)
- III. Destroyer Division: DD Shimakaze, DD Hokaze, DD Nokaze, DD Harukaze
- IV. Destroyer Division: DD Sawakaze, DD Hakaze, DD Kamikaze, DD Asanagi
- IV. Light Destroyer Division: K-16, K-17, K-18, K-19, K-20
- V. Light Destroyer Division: K-21, K-22, K-23, K-24, K-25
- VI. Light Destroyer Division: K-26, K-27, K-28, K-29, K-30
II. Mine Group (HQ at Chiba)
- III. Mine Division: L-10, L-11, L-12, L-13, L-14, L-15, L-16, L-17, L-18
- IV. Mine Division: M-07, M-08, M-09, M-10, M-11, M-12
II. Gunboat Group (HQ at Yokohama)
- III. Heavy Gunboat Division: F-11, F-12, F-13, F-14, F-15
- IV. Heavy Gunboat Division: F-16, F-17, F-18, F-19, F-20
- III. Light Gunboat Division: G-09, G-10, G-11, G-12
- IV. Light Gunboat Division: G-13, G-14, G-15, G-16
II. Chase Group (HQ at Ichihara)
- III. Heavy Sub Chase Division: A-11, A-12, A-13, A-14, A-15
- IV. Heavy Sub Chase Division: A-16, A-17, A-18, A-19, A-20
- III. Light Sub Chase Division: S-15, S-16, S-17, S-18, S-19, S-20, S-21
- IV. Light Sub Chase Division: S-22, S-23, S-24, S-25, S-26, S-27, S-28


Southwestern Fleet (3rd Fleet)
Commander-in-Chief 3rd Fleet: Vice Admiral Nakano Naoe
Battle Group Nagato (HQ at Omuta)
- Nagato Division: BB Nagato, BB Mutsu
- V. Cruiser Division: AC Tokiwa, AC Kasuga
- VI. Cruiser Division: CL Tenryu, CL Nagara, CL Oi, CL Natori
III. Destroyer Group (HQ at Shimabara)
- V. Destroyer Division: DD Minekaze, DD Shiokaze, DD Yukaze, DD Asakaze
- VI. Destroyer Division: DD Akikaze, DD Numakaze, DD Oite, DD Hayate
- VII. Light Destroyer Division: K-31, K-32, K-33, K-34, K-35
- VIII. Light Destroyer Division: K-36, K-37, K-38, K-39, K-40
- IX. Light Destroyer Division: K-41, K-42, K-43, K-44, K-45
III. Mine Group (HQ at Omuta)
- V. Mine Division: L-19, L-20, L-21, L-22, L-23, L-24, L-25, L-26, L-27
- VI. Mine Division: M-13, M-14, M-15, M-16, M-17, M-18
III. Gunboat Group (HQ at Ookawa)
- V. Heavy Gunboat Division: F-21, F-22, F-23, F-24, F-25
- VI. Heavy Gunboat Division: F-26, F-27, F-28, F-29, F-30
- V. Light Gunboat Division: G-17, G-18, G-19, G-20
- VI. Light Gunboat Division: G-21, G-22, G-23, G-24
III Chase Group (HQ at Shimabara)
- V. Heavy Sub Chase Division: A-21, A-22, A-23, A-24, A-25
- VI. Heavy Sub Chase Division: A-26, A-27, A-28, A-29, A-30
- V. Light Sub Chase Division: S-29, S-30, S-31, S-32, S-33, S-34, S-35
- VI. Light Sub Chase Division: S-36, S-37, S-38, S-39, S-40, S-41, S-42

Central Fleet (4th Fleet)
Commander-in-Chief 4th Fleet: Vice Admiral Taniguchi Naomi
Kameko Imperial Cruiser Division: Kameko-chan
IV. Destroyer Group (HQ at Kobe)
- X. Light Destroyer Division: Kuun, Paruteno, Majeru, Chandana, Niimu, Ietta
- XI. Light Destroyer Division: Odetto, Aarora, Jiseru, Bakusuchuaru, Dai-mon, Vitta-Shasse
- XII Light Destroyer Division: Toki, Shizu, Machi, Kyo, Rere-Sha, Andoromedaa
V. Destroyer Group (HQ at Osaka)
- XIII. Light Destroyer Division: Suparichuuta, Akiresu, Ikarosu, Tiita, Kurakarain, Efuroshuune
- XIV. Light Destroyer Division: Kare, Pashitea, Aguraia, Tairea, Aukusoo, Arekutoo
- XV. Light Destroyer Division: Megaera, Teisuhoon, Yuupandara, Atorobosu, Rakishisu, Kuroosoo
I. Coast Defense Group (HQ at Hiroshima)
- I. Coast Defense Division: Atsusa, Zansho, Asasamu

Submarine Fleet (falls under the command of the Vice Admiral Nakano Naoe)
I. Submarine group (stationed at Sakura-jima submarine base, Kagoshima)
Large Submarine Group: I-1, I-2
Small Submarine Group: I-3, I-4, I-5, I-6, I-7

Imperial Japanese Navy on 1/1/1924

Minister of Navy: Admiral Takarabe Takeshi
Vice-minister of Navy: Vice Admiral Okada Keisuke
Chief of Naval General Staff: Admiral Yamashita Gentaro
Vice Chief of Naval General Staff: Vice Admiral Horiuchi Saburo
Commander-in-Chief Combined Fleet: Admiral Takeshita Isamu

Northeastern Fleet (1st Fleet)
Commander-in-Chief 1st Fleet: Admiral Takeshita Isamu
Battle Group Ise (HQ at Aomori)
- Ise Division: BB Ise, BB Hyuga
- I. Carrier Division: CVL Hosho
- III. Cruiser Division: AC Iwate, AC Izumo
- IV. Cruiser Division: CL Kuma, CL Kiso, CL Tatsuta, CL Kitakama
I. Destroyer Group (HQ at Aomori)
- I. Destroyer Division: DD Yakaze, DD Tachikaze, DD Namikaze, DD Hatakaze
- II. Destroyer Division: DD Okikaze, DD Matsukaze, DD Nadakaze, DD Yunagi
- I. Light Destroyer Division: K-01, K-02, K-03, K-04, K-05
- II. Light Destroyer Division: K-06, K-07, K-08, K-09, K-10
- III. Light Destroyer Division: K-11, K-12, K-13, K-14, K-15
I. Mine Group (HQ at Nobeji)
- I. Mine Division: L-01, L-02, L-03, L-04, L-05, L-06, L-07, L-08, L-09
- II. Mine Division: M-01, M-02, M-03, M-04, M-05, M-06
I. Gunboat Group (HQ at Nobeji)
- I. Heavy Gunboat Division: F-01, F-02, F-03, F-04, F-05
- II. Heavy Gunboat Division: F-06, F-07, F-08, F-09, F-10
- I. Light Gunboat Division: G-01, G-02, G-03, G-04
- II. Light Gunboat Division: G-05, G-06, G-07, G-08
I. Chase Group (HQ at Nobeji)
- I. Heavy Sub Chase Division: A-01, A-02, A-03, A-04, A-05
- II. Heavy Sub Chase Division: A-06, A-07, A-08, A-09, A-10
- I. Light Sub Chase Division: S-01, S-02, S-03, S-04, S-05, S-06, S-07
- II. Light Sub Chase Division: S-08, S-09, S-10, S-11, S-12, S-13, S-14


Southeastern Fleet (2nd Fleet)
Commander-in-Chief 2nd Fleet: Vice Admiral Suzuki Kantaro
Battle Group Fuso (HQ at Edo)
- Fuso Division: BB Fuso, BB Yamashiro
- II. Carrier Division: Zuiho
- I. Cruiser Division: AC Asama, AC Azuma, AC Jakumo, AC Iwaki
- II. Cruiser Division: CL Yura, CL Kinu, CL Abukuma, CL Tama, CL Isuzu
II. Destroyer Group (HQ at Funabashi)
- III. Destroyer Division: DD Shimakaze, DD Hokaze, DD Nokaze, DD Harukaze
- IV. Destroyer Division: DD Sawakaze, DD Hakaze, DD Kamikaze, DD Asanagi
- IV. Light Destroyer Division: K-16, K-17, K-18, K-19, K-20
- V. Light Destroyer Division: K-21, K-22, K-23, K-24, K-25
- VI. Light Destroyer Division: K-26, K-27, K-28, K-29, K-30
II. Mine Group (HQ at Chiba)
- III. Mine Division: L-10, L-11, L-12, L-13, L-14, L-15, L-16, L-17, L-18
- IV. Mine Division: M-07, M-08, M-09, M-10, M-11, M-12
II. Gunboat Group (HQ at Yokohama)
- III. Heavy Gunboat Division: F-11, F-12, F-13, F-14, F-15
- IV. Heavy Gunboat Division: F-16, F-17, F-18, F-19, F-20
- III. Light Gunboat Division: G-09, G-10, G-11, G-12
- IV. Light Gunboat Division: G-13, G-14, G-15, G-16
II. Chase Group (HQ at Ichihara)
- III. Heavy Sub Chase Division: A-11, A-12, A-13, A-14, A-15
- IV. Heavy Sub Chase Division: A-16, A-17, A-18, A-19, A-20
- III. Light Sub Chase Division: S-15, S-16, S-17, S-18, S-19, S-20, S-21
- IV. Light Sub Chase Division: S-22, S-23, S-24, S-25, S-26, S-27, S-28


Southwestern Fleet (3rd Fleet)
Commander-in-Chief 3rd Fleet: Vice Admiral Nakano Naoe
Battle Group Nagato (HQ at Omuta)
- Nagato Division: BB Nagato, BB Mutsu
- III. Carrier Division: Shoho
- V. Cruiser Division: AC Tokiwa, AC Kasuga
- VI. Cruiser Division: CL Tenryu, CL Nagara, CL Oi, CL Natori
III. Destroyer Group (HQ at Shimabara)
- V. Destroyer Division: DD Minekaze, DD Shiokaze, DD Yukaze, DD Asakaze
- VI. Destroyer Division: DD Akikaze, DD Numakaze, DD Oite, DD Hayate
- VII. Light Destroyer Division: K-31, K-32, K-33, K-34, K-35
- VIII. Light Destroyer Division: K-36, K-37, K-38, K-39, K-40
- IX. Light Destroyer Division: K-41, K-42, K-43, K-44, K-45
III. Mine Group (HQ at Omuta)
- V. Mine Division: L-19, L-20, L-21, L-22, L-23, L-24, L-25, L-26, L-27
- VI. Mine Division: M-13, M-14, M-15, M-16, M-17, M-18
III. Gunboat Group (HQ at Ookawa)
- V. Heavy Gunboat Division: F-21, F-22, F-23, F-24, F-25
- VI. Heavy Gunboat Division: F-26, F-27, F-28, F-29, F-30
- V. Light Gunboat Division: G-17, G-18, G-19, G-20
- VI. Light Gunboat Division: G-21, G-22, G-23, G-24
III Chase Group (HQ at Shimabara)
- V. Heavy Sub Chase Division: A-21, A-22, A-23, A-24, A-25
- VI. Heavy Sub Chase Division: A-26, A-27, A-28, A-29, A-30
- V. Light Sub Chase Division: S-29, S-30, S-31, S-32, S-33, S-34, S-35
- VI. Light Sub Chase Division: S-36, S-37, S-38, S-39, S-40, S-41, S-42

Central Fleet (4th Fleet)
Commander-in-Chief 4th Fleet: Vice Admiral Taniguchi Naomi
Kameko Imperial Cruiser Division: Kameko-chan
IV. Destroyer Group (HQ at Kobe)
- X. Light Destroyer Division: Kuun, Paruteno, Majeru, Chandana, Niimu, Ietta
- XI. Light Destroyer Division: Odetto, Aarora, Jiseru, Bakusuchuaru, Dai-mon, Vitta-Shasse
- XII Light Destroyer Division: Toki, Shizu, Machi, Kyo, Rere-Sha, Andoromedaa
V. Destroyer Group (HQ at Osaka)
- XIII. Light Destroyer Division: Suparichuuta, Akiresu, Ikarosu, Tiita, Kurakarain, Efuroshuune
- XIV. Light Destroyer Division: Kare, Pashitea, Aguraia, Tairea, Aukusoo, Arekutoo
- XV. Light Destroyer Division: Megaera, Teisuhoon, Yuupandara, Atorobosu, Rakishisu, Kuroosoo
VI. Destroyer Group (HQ at Niihama)
- XVI. Light Destroyer Division: Potaru, Firetto, Shearasuta, Ahurochuun, Sorutiaru, Kurappu,
- XVII. Light Destroyer Division: Parusuetto, Esu-Esu-Eru, Beruda, Turanshu, Meiran, Kurikkaku,
- XVIII. Light Destroyer Division: Teku, Esuto, Syucha, Paracha, Urikuru, Eruma,
VII. Destroyer Group (HQ at Takamatsu)
- XIX. Light Destroyer Division: Ananda, Rinsa, Sarome, Konkoodo, Puura, Okisutoro,
- XX. Light Destroyer Division: Uiruma, Biirudo, Erara, Ladios Sopp, Voards Viewlard, Melcorr Litra
- XXI. Light Destroyer Division: King Lader VIII, Emperor Colus III, Empress Elmelah Colus, Queen Lizard Meistner, Amaterasu-no-Mikoto, Amaterasu-no-Mikado
VIII. Destroyer Group (HQ at Tokushima)
- XXII. Light Destroyer Division: Mission Rouath, Lord Ballanka, Queen Almeaios, Roados Dragoon, Decors Weissmel, Grard Sydmian
- XXIII. Light Destroyer Division: Dr. Chrome Ballanche, Dr. Prisen Corks, Dr. Morard Carbyte, Dr. Steel Koop, Aisha Codante, Landwand Spacorn
- XXIV. Light Destroyer Division: Falk U. Rogner, Lie Ex, Spector, Dr. Dippa Dorpos, Hind Kill, Leopard Crytharis
I. Coast Defense Group (HQ at Hiroshima)
- I. Coast Defense Division: Atsusa, Zansho, Asasamu
I. Coast Assault Group (HQ at Hiroshima)
- I. Coast Assault Division: Go ni I-1, Go ni I-2

Submarine Fleet (falls under the command of the Vice Admiral Nakano Naoe)
I. Submarine group (stationed at Sakura-jima submarine base, Kagoshima)
Large Submarine Group: I-1, I-2
Small Submarine Group: I-3, I-4, I-5, I-6, I-7

Imperial Japanese Navy on 1/1/1925

Minister of Navy: Admiral Takarabe Takeshi
Vice-minister of Navy: Vice Admiral Abo Kiyokazu
Chief of Naval General Staff: Admiral Yamashita Gentaro
Vice Chief of Naval General Staff: Vice Admiral Saito Shichigoro
Commander-in-Chief Combined Fleet: Admiral Okada Keisuke

Northeastern Fleet (1st Fleet)
Commander-in-Chief 1st Fleet: Admiral Okada Keisuke
Battle Group Ise (HQ at Aomori)
- Ise Division: BB Ise, BB Hyuga
- I. Carrier Division: CVL Hosho
- III. Cruiser Division: AC Iwate, AC Izumo
- IV. Cruiser Division: CL Kuma, CL Kiso, CL Tatsuta, CL Kitakama
I. Destroyer Group (HQ at Aomori)
- I. Destroyer Division: DD Yakaze, DD Tachikaze, DD Namikaze, DD Hatakaze
- II. Destroyer Division: DD Okikaze, DD Matsukaze, DD Nadakaze, DD Yunagi
- I. Light Destroyer Division: K-01, K-02, K-03, K-04, K-05
- II. Light Destroyer Division: K-06, K-07, K-08, K-09, K-10
- III. Light Destroyer Division: K-11, K-12, K-13, K-14, K-15
I. Mine Group (HQ at Nobeji)
- I. Mine Division: L-01, L-02, L-03, L-04, L-05, L-06, L-07, L-08, L-09
- II. Mine Division: M-01, M-02, M-03, M-04, M-05, M-06
I. Gunboat Group (HQ at Nobeji)
- I. Heavy Gunboat Division: F-01, F-02, F-03, F-04, F-05
- II. Heavy Gunboat Division: F-06, F-07, F-08, F-09, F-10
- I. Light Gunboat Division: G-01, G-02, G-03, G-04
- II. Light Gunboat Division: G-05, G-06, G-07, G-08
I. Chase Group (HQ at Nobeji)
- I. Heavy Sub Chase Division: A-01, A-02, A-03, A-04, A-05
- II. Heavy Sub Chase Division: A-06, A-07, A-08, A-09, A-10
- I. Light Sub Chase Division: S-01, S-02, S-03, S-04, S-05, S-06, S-07
- II. Light Sub Chase Division: S-08, S-09, S-10, S-11, S-12, S-13, S-14


Southeastern Fleet (2nd Fleet)
Commander-in-Chief 2nd Fleet: Vice Admiral Saito Hanroku
Battle Group Fuso (HQ at Edo)
- Fuso Division: BB Fuso, BB Yamashiro
- II. Carrier Division: Zuiho
- I. Cruiser Division: AC Asama, AC Azuma, AC Jakumo, AC Iwaki
- II. Cruiser Division: CL Yura, CL Kinu, CL Abukuma, CL Tama, CL Isuzu
II. Destroyer Group (HQ at Funabashi)
- III. Destroyer Division: DD Shimakaze, DD Hokaze, DD Nokaze, DD Harukaze
- IV. Destroyer Division: DD Sawakaze, DD Hakaze, DD Kamikaze, DD Asanagi
- IV. Light Destroyer Division: K-16, K-17, K-18, K-19, K-20
- V. Light Destroyer Division: K-21, K-22, K-23, K-24, K-25
- VI. Light Destroyer Division: K-26, K-27, K-28, K-29, K-30
II. Mine Group (HQ at Chiba)
- III. Mine Division: L-10, L-11, L-12, L-13, L-14, L-15, L-16, L-17, L-18
- IV. Mine Division: M-07, M-08, M-09, M-10, M-11, M-12
II. Gunboat Group (HQ at Yokohama)
- III. Heavy Gunboat Division: F-11, F-12, F-13, F-14, F-15
- IV. Heavy Gunboat Division: F-16, F-17, F-18, F-19, F-20
- III. Light Gunboat Division: G-09, G-10, G-11, G-12
- IV. Light Gunboat Division: G-13, G-14, G-15, G-16
II. Chase Group (HQ at Ichihara)
- III. Heavy Sub Chase Division: A-11, A-12, A-13, A-14, A-15
- IV. Heavy Sub Chase Division: A-16, A-17, A-18, A-19, A-20
- III. Light Sub Chase Division: S-15, S-16, S-17, S-18, S-19, S-20, S-21
- IV. Light Sub Chase Division: S-22, S-23, S-24, S-25, S-26, S-27, S-28


Southwestern Fleet (3rd Fleet)
Commander-in-Chief 3rd Fleet: Vice Admiral Hyakutake Saburo
Battle Group Nagato (HQ at Omuta)
- Nagato Division: BB Nagato, BB Mutsu
- III. Carrier Division: Shoho
- V. Cruiser Division: AC Tokiwa, AC Kasuga
- VI. Cruiser Division: CL Tenryu, CL Nagara, CL Oi, CL Natori
III. Destroyer Group (HQ at Shimabara)
- V. Destroyer Division: DD Minekaze, DD Shiokaze, DD Yukaze, DD Asakaze
- VI. Destroyer Division: DD Akikaze, DD Numakaze, DD Oite, DD Hayate
- VII. Light Destroyer Division: K-31, K-32, K-33, K-34, K-35
- VIII. Light Destroyer Division: K-36, K-37, K-38, K-39, K-40
- IX. Light Destroyer Division: K-41, K-42, K-43, K-44, K-45
III. Mine Group (HQ at Omuta)
- V. Mine Division: L-19, L-20, L-21, L-22, L-23, L-24, L-25, L-26, L-27
- VI. Mine Division: M-13, M-14, M-15, M-16, M-17, M-18
III. Gunboat Group (HQ at Ookawa)
- V. Heavy Gunboat Division: F-21, F-22, F-23, F-24, F-25
- VI. Heavy Gunboat Division: F-26, F-27, F-28, F-29, F-30
- V. Light Gunboat Division: G-17, G-18, G-19, G-20
- VI. Light Gunboat Division: G-21, G-22, G-23, G-24
III Chase Group (HQ at Shimabara)
- V. Heavy Sub Chase Division: A-21, A-22, A-23, A-24, A-25
- VI. Heavy Sub Chase Division: A-26, A-27, A-28, A-29, A-30
- V. Light Sub Chase Division: S-29, S-30, S-31, S-32, S-33, S-34, S-35
- VI. Light Sub Chase Division: S-36, S-37, S-38, S-39, S-40, S-41, S-42

Central Fleet (4th Fleet)
Commander-in-Chief 4th Fleet: Vice Admiral Taniguchi Naomi
Imperial Cruiser Group (HQ at Osaka)
Kameko Imperial Cruiser Division: Kameko-chan
- I. Light Destroyer Protector Division: Iler the Bishop, Palu Suyene, Viscount Huah von Hitter, Muse van Reyback, Meeth Silver
- II. Light Destroyer Protector Division: Dimor Hiahraki, Jabo Beat, Senkoukei Tomoe, Michael Lester, Dougulus Kaien
IV. Destroyer Group (HQ at Kobe)
- X. Light Destroyer Division: Kuun, Paruteno, Majeru, Chandana, Niimu, Ietta, Odetto, Aarora
- XI. Light Destroyer Division: Jiseru, Bakusuchuaru, Dai-mon, Vitta-Shasse, Toki, Shizu, Machi, Kyo
- XII Light Destroyer Division: Rere-Sha, Andoromedaa, Suparichuuta, Akiresu, Ikarosu, Tiita, Kurakarain, Efuroshuune
V. Destroyer Group (HQ at Osaka)
- XIII. Light Destroyer Division: Kare, Pashitea, Aguraia, Tairea, Aukusoo, Arekutoo, Megaera, Teisuhoon
- XIV. Light Destroyer Division: Yuupandara, Atorobosu, Rakishisu, Kuroosoo, Potaru, Firetto, Shearasuta, Ahurochuun
- XV. Light Destroyer Division: Sorutiaru, Kurappu, Parusuetto, Esu-Esu-Eru, Beruda, Turanshu, Meiran, Kurikkaku
VI. Destroyer Group (HQ at Niihama)
- XVI. Light Destroyer Division: Teku, Esuto, Syucha, Paracha, Urikuru, Eruma, Ananda, Rinsa
- XVII. Light Destroyer Division: Sarome, Konkoodo, Puura, Okisutoro, Uiruma, Biirudo, Erara, Ladios Sopp
- XVIII. Light Destroyer Division: Voards Viewlard, Melcorr Litra, King Lader VIII, Emperor Colus III, Empress Elmelah Colus, Queen Lizard Meistner, Amaterasu-no-Mikoto, Amaterasu-no-Mikado
VII. Destroyer Group (HQ at Takamatsu)
- XIX. Light Destroyer Division: Mission Rouath, Lord Ballanka, Queen Almeaios, Roados Dragoon, Decors Weissmel, Grard Sydmian, Dr. Chrome Ballanche, Dr. Prisen Corks
- XX. Light Destroyer Division: Dr. Morard Carbyte, Dr. Steel Koop, Aisha Codante, Landwand Spacorn, Falk U. Rogner, Lie Ex, Spector, Dr. Dippa Dorpos
- XXI. Light Destroyer Division: Hind Kill, Leopard Crytharis, Urazen Sie, Poesche Nomien, Sharie Randers Krötenschwanz, Bijotorn Corlala, State Ballo Kaiedia, Nu. Suoad Graphight
VIII. Destroyer Group (HQ at Tokushima)
- XXII. Light Destroyer Division: Iemrah Lout Jajas, Mishalu Ha Lonn, John Weinzel, Allen Braford, Maximum Holtfors Balance Kaien, Qukey, Bugle de Leizer, Ko Fan Shiemar
- XXIII. Light Destroyer Division: Amaterasu dis Greens Ooe LED, Huselles Carliey, Eidrian Tag, Myoury Kinky, Sir Bester Orbit, Picking Harres, Vralgo Kentauri, Blreno Canzian
- XXIV. Light Destroyer Division: Barbaluse V., Trao Ballanka, Mell Sacheir, Mell Rince Usare Tama, Zoom, Daizina Meister, Label Judah, Maiyu Sukat
I. Coast Defense Group (HQ at Hiroshima)
- I. Coast Defense Division: Atsusa, Zansho, Asasamu
I. Coast Assault Group (HQ at Hiroshima)
- I. Coast Assault Division: Go ni I-1, Go ni I-2, Go ni I-3, Go ni I-4, Go ni I-5, Go ni I-6

Submarine Fleet (falls under the command of the Vice Admiral Hyakutake Saburo)
I. Submarine group (stationed at Sakura-jima submarine base, Kagoshima)
Large Submarine Group: I-1, I-2
Small Submarine Group: I-3, I-4, I-5, I-6, I-7

Imperial Japanese Navy on 1/1/1926

Minister of Navy: Admiral Takarabe Takeshi
Vice-minister of Navy: Vice Admiral Osumi Mineo
Chief of Naval General Staff: Admiral Suzuki Kantaro
Vice Chief of Naval General Staff: Vice Admiral Saito Shichigoro
Commander-in-Chief Combined Fleet: Admiral Okada Keisuke

Northeastern Fleet (1st Fleet)
Commander-in-Chief 1st Fleet: Admiral Okada Keisuke
Battle Group Ise (HQ at Aomori)
- Ise Division: BB Ise, BB Hyuga
- I. Carrier Division: CVL Hosho
- III. Cruiser Division: AC Iwate, AC Izumo
- IV. Cruiser Division: CL Kuma, CL Kiso, CL Tatsuta, CL Kitakama
I. Destroyer Group (HQ at Aomori)
- I. Destroyer Division: DD Yakaze, DD Tachikaze, DD Namikaze, DD Hatakaze, DD Nokaze, DD Harukaze
- II. Destroyer Division: DD Okikaze, DD Matsukaze, DD Nadakaze, DD Yunagi, DD Shimakaze, DD Hokaze
- I. Light Destroyer Division: K-01, K-02, K-03, K-04, K-05
- II. Light Destroyer Division: K-06, K-07, K-08, K-09, K-10
- III. Light Destroyer Division: K-11, K-12, K-13, K-14, K-15
I. Mine Group (HQ at Nobeji)
- I. Mine Division: L-01, L-02, L-03, L-04, L-05, L-06, L-07, L-08, L-09
- II. Mine Division: M-01, M-02, M-03, M-04, M-05, M-06
I. Gunboat Group (HQ at Nobeji)
- I. Heavy Gunboat Division: F-01, F-02, F-03, F-04, F-05
- II. Heavy Gunboat Division: F-06, F-07, F-08, F-09, F-10
- I. Light Gunboat Division: G-01, G-02, G-03, G-04
- II. Light Gunboat Division: G-05, G-06, G-07, G-08
I. Chase Group (HQ at Nobeji)
- I. Heavy Sub Chase Division: A-01, A-02, A-03, A-04, A-05
- II. Heavy Sub Chase Division: A-06, A-07, A-08, A-09, A-10
- I. Light Sub Chase Division: S-01, S-02, S-03, S-04, S-05, S-06, S-07
- II. Light Sub Chase Division: S-08, S-09, S-10, S-11, S-12, S-13, S-14


Southeastern Fleet (2nd Fleet)
Commander-in-Chief 2nd Fleet: Vice Admiral Taniguchi Naomi
Battle Group Fuso (HQ at Edo)
- Fuso Division: BB Fuso, BB Yamashiro, BB Mikasa
- II. Carrier Division: Zuiho
- I. Cruiser Division: Miyazawa Yukino, Sakura Tsubaki
- II. Cruiser Division: CL Yura, CL Kinu, CL Abukuma, CL Tama, CL Isuzu
II. Destroyer Group (HQ at Funabashi)
- III. Destroyer Division: DD Fubuki, DD Shirayuki, Inazuma, Ikazuchi
- IV. Destroyer Division: DD Hatsuyuki, DD Murakumo, Akatsuki, Hibiki
- IV. Light Destroyer Division: K-16, K-17, K-18, K-19, K-20
- V. Light Destroyer Division: K-21, K-22, K-23, K-24, K-25
- VI. Light Destroyer Division: K-26, K-27, K-28, K-29, K-30
II. Mine Group (HQ at Chiba)
- III. Mine Division: L-10, L-11, L-12, L-13, L-14, L-15, L-16, L-17, L-18
- IV. Mine Division: M-07, M-08, M-09, M-10, M-11, M-12
II. Gunboat Group (HQ at Yokohama)
- III. Heavy Gunboat Division: F-11, F-12, F-13, F-14, F-15
- IV. Heavy Gunboat Division: F-16, F-17, F-18, F-19, F-20
- III. Light Gunboat Division: G-09, G-10, G-11, G-12
- IV. Light Gunboat Division: G-13, G-14, G-15, G-16
II. Chase Group (HQ at Ichihara)
- III. Heavy Sub Chase Division: A-11, A-12, A-13, A-14, A-15
- IV. Heavy Sub Chase Division: A-16, A-17, A-18, A-19, A-20
- III. Light Sub Chase Division: S-15, S-16, S-17, S-18, S-19, S-20, S-21
- IV. Light Sub Chase Division: S-22, S-23, S-24, S-25, S-26, S-27, S-28


Southwestern Fleet (3rd Fleet)
Commander-in-Chief 3rd Fleet: Vice Admiral Yoshikawa Yasuhira
Battle Group Nagato (HQ at Omuta)
- Nagato Division: BB Nagato, BB Mutsu
- III. Carrier Division: Shoho
- V. Cruiser Division: AC Tokiwa, AC Asama
- VI. Cruiser Division: CL Tenryu, CL Nagara, CL Oi, CL Natori
III. Destroyer Group (HQ at Shimabara)
- V. Destroyer Division: DD Minekaze, DD Shiokaze, DD Yukaze, DD Asakaze, DD Kamikaze, DD Asanagi
- VI. Destroyer Division: DD Akikaze, DD Numakaze, DD Oite, DD Hayate, DD Sawakaze, DD Hakaze
- VII. Light Destroyer Division: K-31, K-32, K-33, K-34, K-35
- VIII. Light Destroyer Division: K-36, K-37, K-38, K-39, K-40
- IX. Light Destroyer Division: K-41, K-42, K-43, K-44, K-45
III. Mine Group (HQ at Omuta)
- V. Mine Division: L-19, L-20, L-21, L-22, L-23, L-24, L-25, L-26, L-27
- VI. Mine Division: M-13, M-14, M-15, M-16, M-17, M-18
III. Gunboat Group (HQ at Ookawa)
- V. Heavy Gunboat Division: F-21, F-22, F-23, F-24, F-25
- VI. Heavy Gunboat Division: F-26, F-27, F-28, F-29, F-30
- V. Light Gunboat Division: G-17, G-18, G-19, G-20
- VI. Light Gunboat Division: G-21, G-22, G-23, G-24
III Chase Group (HQ at Shimabara)
- V. Heavy Sub Chase Division: A-21, A-22, A-23, A-24, A-25
- VI. Heavy Sub Chase Division: A-26, A-27, A-28, A-29, A-30
- V. Light Sub Chase Division: S-29, S-30, S-31, S-32, S-33, S-34, S-35
- VI. Light Sub Chase Division: S-36, S-37, S-38, S-39, S-40, S-41, S-42

Central Fleet (4th Fleet)
Commander-in-Chief 4th Fleet: Vice Admiral Kato Hiroharu
Imperial Cruiser Group (HQ at Osaka)
Kameko Imperial Cruiser Division: Kameko-chan
- I. Light Destroyer Protector Division: Iler the Bishop, Palu Suyene, Viscount Huah von Hitter, Muse van Reyback, Meeth Silver, Ellena Kunagecva
- II. Light Destroyer Protector Division: Dimor Hiahraki, Jabo Beat, Senkoukei Tomoe, Michael Lester, Dougulus Kaien, Yury Vasyuchenko
- III. Light Destroyer Protector Division: Syndra, Belkut, Kirihime, Ninaris, Corona, Lapis, Hugtrang
- IV. Light Destroyer Protector Division: Dr. Uranium Balance, General Piper, Dr. Ian König, Dr. Bit Maessen, Dr. Jog Kersher, Commander Meia Toccata
IV. Destroyer Group (HQ at Kobe)
- X. Light Destroyer Division: Kuun, Paruteno, Majeru, Chandana, Niimu, Ietta, Odetto, Aarora
- XI. Light Destroyer Division: Jiseru, Bakusuchuaru, Dai-mon, Vitta-Shasse, Toki, Shizu, Machi, Kyo
- XII Light Destroyer Division: Rere-Sha, Andoromedaa, Suparichuuta, Akiresu, Ikarosu, Tiita, Kurakarain, Efuroshuune
V. Destroyer Group (HQ at Osaka)
- XIII. Light Destroyer Division: Kare, Pashitea, Aguraia, Tairea, Aukusoo, Arekutoo, Megaera, Teisuhoon
- XIV. Light Destroyer Division: Yuupandara, Atorobosu, Rakishisu, Kuroosoo, Potaru, Firetto, Shearasuta, Ahurochuun
- XV. Light Destroyer Division: Sorutiaru, Kurappu, Parusuetto, Esu-Esu-Eru, Beruda, Turanshu, Meiran, Kurikkaku
VI. Destroyer Group (HQ at Niihama)
- XVI. Light Destroyer Division: Teku, Esuto, Syucha, Paracha, Urikuru, Eruma, Ananda, Rinsa
- XVII. Light Destroyer Division: Sarome, Konkoodo, Puura, Okisutoro, Uiruma, Biirudo, Erara, Ladios Sopp
- XVIII. Light Destroyer Division: Voards Viewlard, Melcorr Litra, King Lader VIII, Emperor Colus III, Empress Elmelah Colus, Queen Lizard Meistner, Amaterasu-no-Mikoto, Amaterasu-no-Mikado
VII. Destroyer Group (HQ at Takamatsu)
- XIX. Light Destroyer Division: Mission Rouath, Lord Ballanka, Queen Almeaios, Roados Dragoon, Decors Weissmel, Grard Sydmian, Dr. Chrome Ballanche, Dr. Prisen Corks
- XX. Light Destroyer Division: Dr. Morard Carbyte, Dr. Steel Koop, Aisha Codante, Landwand Spacorn, Falk U. Rogner, Lie Ex, Spector, Dr. Dippa Dorpos
- XXI. Light Destroyer Division: Hind Kill, Leopard Crytharis, Urazen Sie, Poesche Nomien, Sharie Randers Krötenschwanz, Bijotorn Corlala, State Ballo Kaiedia, Nu. Suoad Graphight
VIII. Destroyer Group (HQ at Tokushima)
- XXII. Light Destroyer Division: Iemrah Lout Jajas, Mishalu Ha Lonn, John Weinzel, Allen Braford, Maximum Holtfors Balance Kaien, Qukey, Bugle de Leizer, Ko Fan Shiemar
- XXIII. Light Destroyer Division: Amaterasu dis Greens Ooe LED, Huselles Carliey, Eidrian Tag, Myoury Kinky, Sir Bester Orbit, Picking Harres, Vralgo Kentauri, Blreno Canzian
- XXIV. Light Destroyer Division: Barbaluse V., Trao Ballanka, Mell Sacheir, Mell Rince Usare Tama, Zoom, Daizina Meister, Label Judah, Maiyu Sukat
I. Coast Defense Group (HQ at Hiroshima)
- I. Coast Defense Division: CDS Atatake, CDS Atsusa, CDS Zansho, CDS Asasamu
I. Coast Assault Group (HQ at Hiroshima)
- I. Coast Assault Division: Go ni I-1, Go ni I-2, Go ni I-3, Go ni II-1
- II. Coast Assault Division: Go ni I-4, Go ni I-5, Go ni I-6, Go ni II-2

Submarine Fleet (falls under the command of the Vice Admiral Yoshikawa Yasuhira)
I. Submarine group (stationed at Sakura-jima submarine base, Kagoshima)
Large Submarine Group: I-1, I-2
Small Submarine Group: I-3, I-4, I-5, I-6, I-7

Imperial Japanese Navy on 1/1/1927

Minister of Navy: Admiral Takarabe Takeshi
Vice-minister of Navy: Vice Admiral Osumi Mineo
Chief of Naval General Staff: Admiral Suzuki Kantaro
Vice Chief of Naval General Staff: Vice Admiral Nomura Kichisaburo
Commander-in-Chief Combined Fleet: Vice Admiral Kato Hiroharu

Northeastern Fleet (1st Fleet)
Commander-in-Chief 1st Fleet: Admiral Kato Hiroharu
Battle Group Ise (HQ at Aomori)
- Ise Division: BB Ise, BB Hyuga
- I. Carrier Division: CVL Hosho
- III. Cruiser Division: AC Iwate, AC Izumo
- IV. Cruiser Division: CL Kuma, CL Kiso, CL Tatsuta, CL Kitakama
I. Destroyer Group (HQ at Aomori)
- I. Destroyer Division: DD Yakaze, DD Tachikaze, DD Namikaze, DD Hatakaze, DD Nokaze, DD Harukaze
- II. Destroyer Division: DD Okikaze, DD Matsukaze, DD Nadakaze, DD Yunagi, DD Shimakaze, DD Hokaze
- I. Light Destroyer Division: K-01, K-02, K-03, K-04, K-05
- II. Light Destroyer Division: K-06, K-07, K-08, K-09, K-10
- III. Light Destroyer Division: K-11, K-12, K-13, K-14, K-15
I. Mine Group (HQ at Nobeji)
- I. Mine Division: L-01, L-02, L-03, L-04, L-05, L-06, L-07, L-08, L-09
- II. Mine Division: M-01, M-02, M-03, M-04, M-05, M-06
I. Gunboat Group (HQ at Nobeji)
- I. Heavy Gunboat Division: F-01, F-02, F-03, F-04, F-05
- II. Heavy Gunboat Division: F-06, F-07, F-08, F-09, F-10
- I. Light Gunboat Division: G-01, G-02, G-03, G-04
- II. Light Gunboat Division: G-05, G-06, G-07, G-08
I. Chase Group (HQ at Nobeji)
- I. Heavy Sub Chase Division: A-01, A-02, A-03, A-04, A-05
- II. Heavy Sub Chase Division: A-06, A-07, A-08, A-09, A-10
- I. Light Sub Chase Division: S-01, S-02, S-03, S-04, S-05, S-06, S-07
- II. Light Sub Chase Division: S-08, S-09, S-10, S-11, S-12, S-13, S-14


Southeastern Fleet (2nd Fleet)
Commander-in-Chief 2nd Fleet: Vice Admiral Yoshikawa Yasuhiro
Battle Group Fuso (HQ at Edo)
- Fuso Division: BB Fuso, BB Yamashiro, BB Mikasa
- II. Carrier Division: Zuiho
- I. Cruiser Division: Miyazawa Yukino, Sakura Tsubaki
- II. Cruiser Division: CL Yura, CL Kinu, CL Abukuma, CL Tama, CL Isuzu
II. Destroyer Group (HQ at Funabashi)
- III. Destroyer Division: DD Fubuki, DD Shirayuki, Inazuma, Ikazuchi
- IV. Destroyer Division: DD Hatsuyuki, DD Murakumo, Akatsuki, Hibiki
- IV. Light Destroyer Division: K-16, K-17, K-18, K-19, K-20
- V. Light Destroyer Division: K-21, K-22, K-23, K-24, K-25
- VI. Light Destroyer Division: K-26, K-27, K-28, K-29, K-30
II. Mine Group (HQ at Chiba)
- III. Mine Division: L-10, L-11, L-12, L-13, L-14, L-15, L-16, L-17, L-18
- IV. Mine Division: M-07, M-08, M-09, M-10, M-11, M-12
II. Gunboat Group (HQ at Yokohama)
- III. Heavy Gunboat Division: F-11, F-12, F-13, F-14, F-15
- IV. Heavy Gunboat Division: F-16, F-17, F-18, F-19, F-20
- III. Light Gunboat Division: G-09, G-10, G-11, G-12
- IV. Light Gunboat Division: G-13, G-14, G-15, G-16
II. Chase Group (HQ at Ichihara)
- III. Heavy Sub Chase Division: A-11, A-12, A-13, A-14, A-15
- IV. Heavy Sub Chase Division: A-16, A-17, A-18, A-19, A-20
- III. Light Sub Chase Division: S-15, S-16, S-17, S-18, S-19, S-20, S-21
- IV. Light Sub Chase Division: S-22, S-23, S-24, S-25, S-26, S-27, S-28


Southwestern Fleet (3rd Fleet)
Commander-in-Chief 3rd Fleet: Vice Admiral Otani Koshiro
Battle Group Nagato (HQ at Omuta)
- Nagato Division: BB Nagato, BB Mutsu
- III. Carrier Division: Shoho
- V. Cruiser Division: AC Tokiwa, AC Asama
- VI. Cruiser Division: CL Tenryu, CL Nagara, CL Oi, CL Natori
III. Destroyer Group (HQ at Shimabara)
- V. Destroyer Division: DD Minekaze, DD Shiokaze, DD Yukaze, DD Asakaze, DD Kamikaze, DD Asanagi
- VI. Destroyer Division: DD Akikaze, DD Numakaze, DD Oite, DD Hayate, DD Sawakaze, DD Hakaze
- VII. Light Destroyer Division: K-31, K-32, K-33, K-34, K-35
- VIII. Light Destroyer Division: K-36, K-37, K-38, K-39, K-40
- IX. Light Destroyer Division: K-41, K-42, K-43, K-44, K-45
III. Mine Group (HQ at Omuta)
- V. Mine Division: L-19, L-20, L-21, L-22, L-23, L-24, L-25, L-26, L-27
- VI. Mine Division: M-13, M-14, M-15, M-16, M-17, M-18
III. Gunboat Group (HQ at Ookawa)
- V. Heavy Gunboat Division: F-21, F-22, F-23, F-24, F-25
- VI. Heavy Gunboat Division: F-26, F-27, F-28, F-29, F-30
- V. Light Gunboat Division: G-17, G-18, G-19, G-20
- VI. Light Gunboat Division: G-21, G-22, G-23, G-24
III Chase Group (HQ at Shimabara)
- V. Heavy Sub Chase Division: A-21, A-22, A-23, A-24, A-25
- VI. Heavy Sub Chase Division: A-26, A-27, A-28, A-29, A-30
- V. Light Sub Chase Division: S-29, S-30, S-31, S-32, S-33, S-34, S-35
- VI. Light Sub Chase Division: S-36, S-37, S-38, S-39, S-40, S-41, S-42

Central Fleet (4th Fleet)
Commander-in-Chief 4th Fleet: Vice Admiral Yamamoto Eisuke
Imperial Cruiser Group (HQ at Osaka)
Kameko Imperial Cruiser Division: Kameko-chan
- I. Light Destroyer Protector Division: Iler the Bishop, Palu Suyene, Viscount Huah von Hitter, Muse van Reyback, Meeth Silver, Ellena Kunagecva, Dimor Hiahraki, Jabo Beat
- II. Light Destroyer Protector Division: Senkoukei Tomoe, Michael Lester, Dougulus Kaien, Yury Vasyuchenko, Dr. Uranium Balance, Commander Meia Toccata, Madora Moirai
- III. Light Destroyer Protector Division: Syndra, Belkut, Kirihime, Ninaris, Corona, Lapis, Hugtrang, Harper
- IV. Light Destroyer Protector Division: General Piper, Dr. Ian König, Dr. Bit
Maessen, Dr. Jog Kersher, Magdall Atoll, Haird Grover, Joe Jid Matoria
- V. Light Destroyer Protection Division: Cyclommatus Metallifer, Vogin de Leibuch, Erniuth Dai Gu Fillmore 5, Abien Hietsai, Naias Brünhilde, Gyabcy Galla, Nio Hathler, Krakenbeal Mejojo
IV. Destroyer Group (HQ at Kobe)
- X. Light Destroyer Division: Kuun, Paruteno, Majeru, Chandana, Niimu, Ietta, Odetto, Aarora
- XI. Light Destroyer Division: Jiseru, Bakusuchuaru, Dai-mon, Vitta-Shasse, Toki, Shizu, Machi, Kyo
- XII Light Destroyer Division: Rere-Sha, Andoromedaa, Suparichuuta, Akiresu, Ikarosu, Tiita, Kurakarain, Efuroshuune
V. Destroyer Group (HQ at Osaka)
- XIII. Light Destroyer Division: Kare, Pashitea, Aguraia, Tairea, Aukusoo, Arekutoo, Megaera, Teisuhoon
- XIV. Light Destroyer Division: Yuupandara, Atorobosu, Rakishisu, Kuroosoo, Potaru, Firetto, Shearasuta, Ahurochuun
- XV. Light Destroyer Division: Sorutiaru, Kurappu, Parusuetto, Esu-Esu-Eru, Beruda, Turanshu, Meiran, Kurikkaku
VI. Destroyer Group (HQ at Niihama)
- XVI. Light Destroyer Division: Teku, Esuto, Syucha, Paracha, Urikuru, Eruma, Ananda, Rinsa
- XVII. Light Destroyer Division: Sarome, Konkoodo, Puura, Okisutoro, Uiruma, Biirudo, Erara, Ladios Sopp
- XVIII. Light Destroyer Division: Voards Viewlard, Melcorr Litra, King Lader VIII, Emperor Colus III, Empress Elmelah Colus, Queen Lizard Meistner, Amaterasu-no-Mikoto, Amaterasu-no-Mikado
VII. Destroyer Group (HQ at Takamatsu)
- XIX. Light Destroyer Division: Mission Rouath, Lord Ballanka, Queen Almeaios, Roados Dragoon, Decors Weissmel, Grard Sydmian, Dr. Chrome Ballanche, Dr. Prisen Corks
- XX. Light Destroyer Division: Dr. Morard Carbyte, Dr. Steel Koop, Aisha Codante, Landwand Spacorn, Falk U. Rogner, Lie Ex, Spector, Dr. Dippa Dorpos
- XXI. Light Destroyer Division: Hind Kill, Leopard Crytharis, Urazen Sie, Poesche Nomien, Sharie Randers Krötenschwanz, Bijotorn Corlala, State Ballo Kaiedia, Nu. Suoad Graphight
VIII. Destroyer Group (HQ at Tokushima)
- XXII. Light Destroyer Division: Iemrah Lout Jajas, Mishalu Ha Lonn, John Weinzel, Allen Braford, Maximum Holtfors Balance Kaien, Qukey, Bugle de Leizer, Ko Fan Shiemar
- XXIII. Light Destroyer Division: Amaterasu dis Greens Ooe LED, Huselles Carliey, Eidrian Tag, Myoury Kinky, Sir Bester Orbit, Picking Harres, Vralgo Kentauri, Blreno Canzian
- XXIV. Light Destroyer Division: Barbaluse V., Trao Ballanka, Mell Sacheir, Mell Rince Usare Tama, Zoom, Daizina Meister, Label Judah, Maiyu Sukat
I. Coast Defense Group (HQ at Hiroshima)
- I. Coast Defense Division: CDS Atatake, CDS Atsusa, CDS Zansho, CDS Asasamu
I. Coast Assault Group (HQ at Hiroshima)
- I. Coast Assault Division: Go ni I-1, Go ni I-2, Go ni I-3, Go ni II-1
- II. Coast Assault Division: Go ni I-4, Go ni I-5, Go ni I-6, Go ni II-2

Submarine Fleet (falls under the command of the Vice Admiral Otani Koshiro)
I. Submarine group (stationed at Sakura-jima submarine base, Kagoshima)
Large Submarine Group: I-1, I-2
Small Submarine Group: I-3, I-4, I-5, I-6, I-7

Imperial Japanese Navy on 1/1/1931

Minister of Navy: Admiral Abo Kiyokazu
Vice-minister of Navy: Vice Admiral Kobayashi Seizo
Chief of Naval General Staff: Admiral Taniguchi Naomi
Vice Chief of Naval General Staff: Vice Admiral Nagano Osami
Commander-in-Chief Combined Fleet: Vice Admiral Yamamoto Eisuke

Northeastern Fleet (1st Fleet)
Commander-in-Chief 1st Fleet: Vice Admiral Yamamoto Eisuke
Battle Group Ise (HQ at Aomori)
- Ise Division: BB Ise, BB Hyuga
- I. Support Division: CL Tenryu, DD Nadakaze, DD Shiokaze, DD Ushio, DD Sazanami, DD Yudachi, DD Kawakaze
Battle Group Hosho (HQ at Aomori)
- I. Carrier Division: CVL Hosho
- III. Cruiser Division: AC Izumo
- IV. Cruiser Division: CL Nagara, CL Isuzu, CL Natori, CL Kuma, CL Tama
I. Destroyer Group (HQ at Aomori)
- I. Destroyer Division: DD Minekaze, DD Sawakaze, DD Okikaze, DD Kamikaze, DD Asakaze
- II. Destroyer Division: DD Shimakaze, DD Yakaze, DD Hakaze, DD Harukaze, DD Matsukaze
- I. Light Destroyer Division: K-01, K-02, K-03, K-04, K-05
- II. Light Destroyer Division: K-06, K-07, K-08, K-09, K-10
- III. Light Destroyer Division: K-11, K-12, K-13, K-14, K-15
I. Mine Group (HQ at Nobeji)
- I. Minelayer Division: L-01, L-02, L-03, L-04, L-05, L-06, L-07
- II. Minelayer Division: L-08, L-09, L-10, L-11, L-12, L-13
- I. Minesweeper Division: M-01, M-02, M-03, M-04, M-05,
- II. Minesweeper Division: M-06, M-07, M-08, M-09
I. Gunboat Group (HQ at Nobeji)
- I. Heavy Gunboat Division: F-01, F-02, F-03, F-04, F-05
- II. Heavy Gunboat Division: F-06, F-07, F-08, F-09, F-10
- III. Heavy Gunboat Division: F-11, F-12, F-13, F-14, F-15
- I. Light Gunboat Division: G-01, G-02, G-03, G-04
- II. Light Gunboat Division: G-05, G-06, G-07, G-08
- III. Light Gunboat Division: G-09, G-10, G-11, G-12
I. Chase Group (HQ at Nobeji)
- I. Heavy Sub Chase Division: A-01, A-02, A-03, A-04, A-05
- II. Heavy Sub Chase Division: A-06, A-07, A-08, A-09, A-10
- III. Heavy Sub Chase Division: A-11, A-12, A-13, A-14, A-15
- I. Light Sub Chase Division: S-01, S-02, S-03, S-04, S-05, S-06, S-07
- II. Light Sub Chase Division: S-08, S-09, S-10, S-11, S-12, S-13, S-14
- III. Light Sub Chase Division: S-15, S-16, S-17, S-18, S-19, S-20, S-21


Southeastern Fleet (2nd Fleet)
Commander-in-Chief 2nd Fleet: Vice Admiral Nakamura Ryozo
Battle Group Fuso (HQ at Edo)
- Fuso Division: BB Nagato, BB Mutsu,
- Mikasa Museum: BB Mikasa
Battle Group Soryu (HQ at Yokosuka)
- II. Carrier Division: CV Soryu, CV Hiryu
- I. Cruiser Division: CA Miyazawa Yukino, CA Sakura Tsubaki, CA Sena Rika, CA Sawada Aya, CA Isawa Maho, CA Shibahime Tsubasa
- II. Cruiser Division: CL Fujimiya Ran, CL Hidaka Ken, CL Kudou Yoji, CL Tsukiyono Omi, CL Aoi Chizoru, CL Kitaura Karen, CL Hibino Nanami, CL Murase Asuka
II. Destroyer Group (HQ at Funabashi)
- III. Destroyer Division: DD Fubuki, DD Shirayuki, DD Hatsuyuki, DD Murakumo, DD Isonami, DD Shinonome, DD Usugumo, DD Shirakumo,
- IV. Destroyer Division: DD Miyuki, DD Uranami, DD Shikinami, DD Ayanami, DD Asagiri, DD Sagiri, DD Amagiri, DD Yugiri,
- V. Destroyer Division: DD Akatsuki, DD Hibiki, DD Inazuma, DD Ikazuchi, DD Hatsuharu, DD Nenohi, DD Hatsushimo, DD Wakaba
- VI. Destroyer Division: DD Yugure, DD Ariake, DD Shiratsuyu, DD Shigure, DD Murasame, DD Samidare, DD Harusame, DD Yamakaze
- IV. Light Destroyer Division: K-16, K-17, K-18, K-19, K-20
- V. Light Destroyer Division: K-21, K-22, K-23, K-24, K-25
- VI. Light Destroyer Division: K-26, K-27, K-28, K-29, K-30
I. MPV Group (HQ at Chiba)
I. MPV Division: MPV Tsukino Usagi, MPV Mizuno Ami, MPV Hino Rei
II. MPV Group (HQ at Yokohama)
II. MPV Division: MPV Kino Makoto, MPV Aino Minako, MPV Meiou Setsuna
III. MPV Group (HQ at Ichihara)
III. MPV Division: MPV Tennou Haruka, MPV Kaiou Michiru, MPV Tomoe Hotaru

Southwestern Fleet (3rd Fleet)
Commander-in-Chief 3rd Fleet: Vice Admiral Nomura Kichisaburo
Battle Group Fuso (HQ at Omuta)
- Fuso Division: BB Fuso, BB Yamashiro
- II. Support Division: CL Tatsuta, DD Namikaze, DD Hayate, DD Akebono, DD Oboro, DD Umikaze, DD Suzukaze
Battle Group Zuiho (HQ at Omuta)
- III. Carrier Division: Zuiho
- V. Cruiser Division: AC Tokiwa, AC Asama
- VI. Cruiser Division: CL Kinu, CL Yura, CL Kitakama, CL Oi, CL Kiso
III. Destroyer Group (HQ at Shimabara)
- VII. Destroyer Division: DD Akikaze, DD Tachikaze, DD Yukaze, DD Hatakaze, DD Asanagi
- VIII. Destroyer Division: DD Hokaze, DD Nokaze, DD Numakaze, DD Yunagi, DD Oite
- VII. Light Destroyer Division: K-31, K-32, K-33, K-34, K-35
- VIII. Light Destroyer Division: K-36, K-37, K-38, K-39, K-40
- IX. Light Destroyer Division: K-41, K-42, K-43, K-44, K-45
III. Mine Group (HQ at Omuta)
- III. Minelayer Division: L-14, L-15, L-16, L-17, L-18, L-19, L-20
- IV. Minelayer Division: L-21, L-22, L-23, L-24, L-25, L-26, L-27
- III. Minesweeper Division: M-10, M-11, M-12, M-13, M-14,
- IV. Minesweeper Division: M-15, M-16, M-17, M-18
III. Gunboat Group (HQ at Ookawa)
- IV. Heavy Gunboat Division: F-16, F-17, F-18, F-19, F-20
- V. Heavy Gunboat Division: F-21, F-22, F-23, F-24, F-25
- VI. Heavy Gunboat Division: F-26, F-27, F-28, F-29, F-30
- IV. Light Gunboat Division: G-13, G-14, G-15, G-16
- V. Light Gunboat Division: G-17, G-18, G-19, G-20
- VI. Light Gunboat Division: G-21, G-22, G-23, G-24
III Chase Group (HQ at Shimabara)
- IV. Heavy Sub Chase Division: A-16, A-17, A-18, A-19, A-20
- V. Heavy Sub Chase Division: A-21, A-22, A-23, A-24, A-25
- VI. Heavy Sub Chase Division: A-26, A-27, A-28, A-29, A-30
- IV. Light Sub Chase Division: S-22, S-23, S-24, S-25, S-26, S-27, S-28
- V. Light Sub Chase Division: S-29, S-30, S-31, S-32, S-33, S-34, S-35
- VI. Light Sub Chase Division: S-36, S-37, S-38, S-39, S-40, S-41, S-42

Central Fleet (4th Fleet)
Commander-in-Chief 4th Fleet: Vice Admiral Suetsugu Nobumasa
Imperial Cruiser Group (HQ at Osaka)
Kameko Imperial Cruiser Division: Kameko-chan
- I. Light Destroyer Protector Division: Iler the Bishop, Palu Suyene, Viscount Huah von Hitter, Muse van Reyback, Meeth Silver, Ellena Kunagecva, Dimor Hiahraki, Jabo Beat
- II. Light Destroyer Protector Division: Senkoukei Tomoe, Michael Lester, Dougulus Kaien, Yury Vasyuchenko, Dr. Uranium Balance, Commander Meia Toccata, Madora Moirai
- III. Light Destroyer Protector Division: Syndra, Belkut, Kirihime, Ninaris, Corona, Lapis, Hugtrang, Harper
- IV. Light Destroyer Protector Division: General Piper, Dr. Ian König, Dr. Bit
Maessen, Dr. Jog Kersher, Magdall Atoll, Haird Grover, Joe Jid Matoria
- V. Light Destroyer Protection Division: Cyclommatus Metallifer, Vogin de Leibuch, Erniuth Dai Gu Fillmore 5, Abien Hietsai, Naias Brünhilde, Gyabcy Galla, Nio Hathler, Krakenbeal Mejojo
IV. Destroyer Group (HQ at Kobe)
- X. Light Destroyer Division: Kuun, Paruteno, Majeru, Chandana, Niimu, Ietta, Odetto, Aarora
- XI. Light Destroyer Division: Jiseru, Bakusuchuaru, Dai-mon, Vitta-Shasse, Toki, Shizu, Machi, Kyo
- XII Light Destroyer Division: Rere-Sha, Andoromedaa, Suparichuuta, Akiresu, Ikarosu, Tiita, Kurakarain, Efuroshuune
V. Destroyer Group (HQ at Osaka)
- XIII. Light Destroyer Division: Kare, Pashitea, Aguraia, Tairea, Aukusoo, Arekutoo, Megaera, Teisuhoon
- XIV. Light Destroyer Division: Yuupandara, Atorobosu, Rakishisu, Kuroosoo, Potaru, Firetto, Shearasuta, Ahurochuun
- XV. Light Destroyer Division: Sorutiaru, Kurappu, Parusuetto, Esu-Esu-Eru, Beruda, Turanshu, Meiran, Kurikkaku
VI. Destroyer Group (HQ at Niihama)
- XVI. Light Destroyer Division: Teku, Esuto, Syucha, Paracha, Urikuru, Eruma, Ananda, Rinsa
- XVII. Light Destroyer Division: Sarome, Konkoodo, Puura, Okisutoro, Uiruma, Biirudo, Erara, Ladios Sopp
- XVIII. Light Destroyer Division: Voards Viewlard, Melcorr Litra, King Lader VIII, Emperor Colus III, Empress Elmelah Colus, Queen Lizard Meistner, Amaterasu-no-Mikoto, Amaterasu-no-Mikado
VII. Destroyer Group (HQ at Takamatsu)
- XIX. Light Destroyer Division: Mission Rouath, Lord Ballanka, Queen Almeaios, Roados Dragoon, Decors Weissmel, Grard Sydmian, Dr. Chrome Ballanche, Dr. Prisen Corks
- XX. Light Destroyer Division: Dr. Morard Carbyte, Dr. Steel Koop, Aisha Codante, Landwand Spacorn, Falk U. Rogner, Lie Ex, Spector, Dr. Dippa Dorpos
- XXI. Light Destroyer Division: Hind Kill, Leopard Crytharis, Urazen Sie, Poesche Nomien, Sharie Randers Krötenschwanz, Bijotorn Corlala, State Ballo Kaiedia, Nu. Suoad Graphight
VIII. Destroyer Group (HQ at Tokushima)
- XXII. Light Destroyer Division: Iemrah Lout Jajas, Mishalu Ha Lonn, John Weinzel, Allen Braford, Maximum Holtfors Balance Kaien, Qukey, Bugle de Leizer, Ko Fan Shiemar
- XXIII. Light Destroyer Division: Amaterasu dis Greens Ooe LED, Huselles Carliey, Eidrian Tag, Myoury Kinky, Sir Bester Orbit, Picking Harres, Vralgo Kentauri, Blreno Canzian
- XXIV. Light Destroyer Division: Barbaluse V., Trao Ballanka, Mell Sacheir, Mell Rince Usare Tama, Zoom, Daizina Meister, Label Judah, Maiyu Sukat
I. Coast Defense Group (HQ at Hiroshima)
- I. Coast Defense Division: CDBB Chikan Chuui, MM Hideyoshi Hashiba
- II. Coast Defense Division: CDS Atatake, CDS Urarake
- III. Coast Defense Division: CDS Atsusa, CDS Zansho, CDS Asasamu
- IV. Coast Defense Division: CDS Tonbogiri, CDS Kumogiri, CDS Omoikane, CDS Ichimonji, CDS Munechika, CDS Yukimitsu, CDS Muramasa
I. Coast Assault Group (HQ at Hiroshima)
- I. Coast Assault Division: Go ni I-1, Go ni I-2, Go ni I-3, Go ni II-1
- II. Coast Assault Division: Go ni I-4, Go ni I-5, Go ni I-6, Go ni II-2

Submarine Fleet (falls under the command of the Vice Admiral Nomura Kichisaburo)
I. Submarine group (stationed at Sakura-jima submarine base, Kagoshima)
Large Submarine Group: I-1, I-2
Small Submarine Group: I-3, I-4, I-5, I-6, I-7
Coast Submarine Group: IC-1, IC-2, IC-3, IC-4, IC-5, IC-6, IC-7, IC-8, IC-9, IC-10

Others spread across Japan:
- Midget Submarines:
IM-1, IM-2, IM-3, IM-4, IM-5, IM-6, IM-7, IM-8, IM-9, IM-10, IM-11, IM-12, IM-13, IM-14, IM-15, IM-16, IM-17, IM-18, IM-19, IM-20, IM-21, IM-22, IM-23, IM-24, IM-25, IM-26, IM-27, IM-28, IM-29, IM-30, IM-31, IM-32, IM-33, IM-34, IM-35, IM-36, IM-37, IM-38, IM-39, IM-40, IM-41, IM-42, IM-43, IM-44, IM-45, IM-46, IM-47, IM-48, IM-49, IM-50, IM-51, IM-52, IM-53, IM-54, IM-55, IM-56, IM-57, IM-58, IM-59, IM-60, IM-61, IM-62, IM-63, IM-64, IM-65, IM-66, IM-67, IM-68, IM-69, IM-70, IM-71, IM-72, IM-73, IM-74, IM-75, IM-76, IM-77, IM-78, IM-79, IM-80, IM-81, IM-82
- River Gunboats: Atami, Futami, Fushimi, Sumida, Seta, Hira, Hozu, Kataka, Toba, Karatsu, Maiko, Narumi, Suma, Tatara
- River Patrol Boats: RPB-1, RPB-2, RPB-3, RPB-4, RPB-5, RPB-6, RPB-7, RPB-8, RPB-9, RPB-10
- Command/Communication boats: CCB-1, CCB-2, CCB-3, CCB-4, CCB-5, CCB-6, CCB-7, CCB-8, CCB-9, CCB-10

Imperial Japanese Navy on 1/1/1932

Minister of Navy: Admiral Osumi Mineo
Vice-minister of Navy: Vice Admiral Sakonji Seizo
Chief of Naval General Staff: Admiral Taniguchi Naomi
Vice Chief of Naval General Staff: Vice Admiral Hyakutake Gengo
Commander-in-Chief Combined Fleet: Vice Admiral Kobayashi Seizo

Northeastern Fleet (1st Fleet)
Commander-in-Chief 1st Fleet: Vice Admiral Kobayashi Seizo
Battle Group Ise (HQ at Aomori)
- Ise Division: BB Ise, BB Hyuga
- I. Support Division: CL Tenryu, DD Nadakaze, DD Shiokaze, DD Ushio, DD Sazanami, DD Yudachi, DD Kawakaze
Battle Group Hosho (HQ at Aomori)
- I. Carrier Division: CVL Hosho
- III. Cruiser Division: AC Izumo
- IV. Cruiser Division: CL Nagara, CL Isuzu, CL Natori, CL Kuma, CL Tama
I. Destroyer Group (HQ at Aomori)
- I. Destroyer Division: DD Minekaze, DD Sawakaze, DD Okikaze, DD Kamikaze, DD Asakaze
- II. Destroyer Division: DD Shimakaze, DD Yakaze, DD Hakaze, DD Harukaze, DD Matsukaze
- I. Light Destroyer Division: K-01, K-02, K-03, K-04, K-05
- II. Light Destroyer Division: K-06, K-07, K-08, K-09, K-10
- III. Light Destroyer Division: K-11, K-12, K-13, K-14, K-15
I. Mine Group (HQ at Nobeji)
- I. Minelayer Division: L-01, L-02, L-03, L-04, L-05, L-06, L-07
- II. Minelayer Division: L-08, L-09, L-10, L-11, L-12, L-13
- I. Minesweeper Division: M-01, M-02, M-03, M-04, M-05,
- II. Minesweeper Division: M-06, M-07, M-08, M-09
I. Gunboat Group (HQ at Nobeji)
- I. Heavy Gunboat Division: F-01, F-02, F-03, F-04, F-05
- II. Heavy Gunboat Division: F-06, F-07, F-08, F-09, F-10
- III. Heavy Gunboat Division: F-11, F-12, F-13, F-14, F-15
- I. Light Gunboat Division: G-01, G-02, G-03, G-04
- II. Light Gunboat Division: G-05, G-06, G-07, G-08
- III. Light Gunboat Division: G-09, G-10, G-11, G-12
I. Chase Group (HQ at Nobeji)
- I. Heavy Sub Chase Division: A-01, A-02, A-03, A-04, A-05
- II. Heavy Sub Chase Division: A-06, A-07, A-08, A-09, A-10
- III. Heavy Sub Chase Division: A-11, A-12, A-13, A-14, A-15
- I. Light Sub Chase Division: S-01, S-02, S-03, S-04, S-05, S-06, S-07
- II. Light Sub Chase Division: S-08, S-09, S-10, S-11, S-12, S-13, S-14
- III. Light Sub Chase Division: S-15, S-16, S-17, S-18, S-19, S-20, S-21


Southeastern Fleet (2nd Fleet)
Commander-in-Chief 2nd Fleet: Vice Admiral Suetsugu Nobumasa
Battle Group Fuso (HQ at Edo)
- Fuso Division: BB Nagato, BB Mutsu,
- Mikasa Museum: BB Mikasa
Battle Group Soryu (HQ at Yokosuka)
- II. Carrier Division: CV Soryu, CV Hiryu
- I. Cruiser Division: CA Miyazawa Yukino, CA Sakura Tsubaki, CA Sena Rika, CA Sawada Aya, CA Isawa Maho, CA Shibahime Tsubasa
- II. Cruiser Division: CL Fujimiya Ran, CL Hidaka Ken, CL Kudou Yoji, CL Tsukiyono Omi, CL Aoi Chizoru, CL Kitaura Karen, CL Hibino Nanami, CL Murase Asuka
- Heavy Destroyer Devision: DDL Toru, DDL Arisa, DDL Saki, DDL Motoko, DDL Yuki, DDL Kyou, DDL Shigure, DDL Kagura, DDL Momiji, DDL Hatori, DDL Hatsuharu, DDL Ayame, DDL Kisa, DDL Hiro, DDL Ritsu, DDL Rin, DDL Kureno, DDL Akito
II. Destroyer Group (HQ at Funabashi)
- III. Destroyer Division: DD Fubuki, DD Shirayuki, DD Hatsuyuki, DD Murakumo, DD Isonami, DD Shinonome, DD Usugumo, DD Shirakumo,
- IV. Destroyer Division: DD Miyuki, DD Uranami, DD Shikinami, DD Ayanami, DD Asagiri, DD Sagiri, DD Amagiri, DD Yugiri,
- V. Destroyer Division: DD Akatsuki, DD Hibiki, DD Inazuma, DD Ikazuchi, DD Hatsuharu, DD Nenohi, DD Hatsushimo, DD Wakaba
- VI. Destroyer Division: DD Yugure, DD Ariake, DD Shiratsuyu, DD Shigure, DD Murasame, DD Samidare, DD Harusame, DD Yamakaze
- IV. Light Destroyer Division: K-16, K-17, K-18, K-19, K-20
- V. Light Destroyer Division: K-21, K-22, K-23, K-24, K-25
- VI. Light Destroyer Division: K-26, K-27, K-28, K-29, K-30
I. MPV Group (HQ at Chiba)
I. MPV Division: MPV Tsukino Usagi, MPV Mizuno Ami, MPV Hino Rei
II. MPV Group (HQ at Yokohama)
II. MPV Division: MPV Kino Makoto, MPV Aino Minako, MPV Meiou Setsuna
III. MPV Group (HQ at Ichihara)
III. MPV Division: MPV Tennou Haruka, MPV Kaiou Michiru, MPV Tomoe Hotaru

Southwestern Fleet (3rd Fleet)
Commander-in-Chief 3rd Fleet: Vice Admiral Nomura Kichisaburo
Battle Group Fuso (HQ at Omuta)
- Fuso Division: BB Fuso, BB Yamashiro
- II. Support Division: CL Tatsuta, DD Namikaze, DD Hayate, DD Akebono, DD Oboro, DD Umikaze, DD Suzukaze
Battle Group Zuiho (HQ at Omuta)
- III. Carrier Division: Zuiho
- V. Cruiser Division: AC Tokiwa, AC Asama
- VI. Cruiser Division: CL Kinu, CL Yura, CL Kitakama, CL Oi, CL Kiso
III. Destroyer Group (HQ at Shimabara)
- VII. Destroyer Division: DD Akikaze, DD Tachikaze, DD Yukaze, DD Hatakaze, DD Asanagi
- VIII. Destroyer Division: DD Hokaze, DD Nokaze, DD Numakaze, DD Yunagi, DD Oite
- VII. Light Destroyer Division: K-31, K-32, K-33, K-34, K-35
- VIII. Light Destroyer Division: K-36, K-37, K-38, K-39, K-40
- IX. Light Destroyer Division: K-41, K-42, K-43, K-44, K-45
III. Mine Group (HQ at Omuta)
- III. Minelayer Division: L-14, L-15, L-16, L-17, L-18, L-19, L-20
- IV. Minelayer Division: L-21, L-22, L-23, L-24, L-25, L-26, L-27
- III. Minesweeper Division: M-10, M-11, M-12, M-13, M-14,
- IV. Minesweeper Division: M-15, M-16, M-17, M-18
III. Gunboat Group (HQ at Ookawa)
- IV. Heavy Gunboat Division: F-16, F-17, F-18, F-19, F-20
- V. Heavy Gunboat Division: F-21, F-22, F-23, F-24, F-25
- VI. Heavy Gunboat Division: F-26, F-27, F-28, F-29, F-30
- IV. Light Gunboat Division: G-13, G-14, G-15, G-16
- V. Light Gunboat Division: G-17, G-18, G-19, G-20
- VI. Light Gunboat Division: G-21, G-22, G-23, G-24
III Chase Group (HQ at Shimabara)
- IV. Heavy Sub Chase Division: A-16, A-17, A-18, A-19, A-20
- V. Heavy Sub Chase Division: A-21, A-22, A-23, A-24, A-25
- VI. Heavy Sub Chase Division: A-26, A-27, A-28, A-29, A-30
- IV. Light Sub Chase Division: S-22, S-23, S-24, S-25, S-26, S-27, S-28
- V. Light Sub Chase Division: S-29, S-30, S-31, S-32, S-33, S-34, S-35
- VI. Light Sub Chase Division: S-36, S-37, S-38, S-39, S-40, S-41, S-42

Central Fleet (4th Fleet)
Commander-in-Chief 4th Fleet: Vice Admiral Takahashi Sankichi
Imperial Cruiser Group (HQ at Osaka)
Kameko Imperial Cruiser Division: Kameko-chan
- I. Light Destroyer Protector Division: Iler the Bishop, Palu Suyene, Viscount Huah von Hitter, Muse van Reyback, Meeth Silver, Ellena Kunagecva, Dimor Hiahraki, Jabo Beat
- II. Light Destroyer Protector Division: Senkoukei Tomoe, Michael Lester, Dougulus Kaien, Yury Vasyuchenko, Dr. Uranium Balance, Commander Meia Toccata, Madora Moirai
- III. Light Destroyer Protector Division: Syndra, Belkut, Kirihime, Ninaris, Corona, Lapis, Hugtrang, Harper
- IV. Light Destroyer Protector Division: General Piper, Dr. Ian König, Dr. Bit
Maessen, Dr. Jog Kersher, Magdall Atoll, Haird Grover, Joe Jid Matoria
- V. Light Destroyer Protection Division: Cyclommatus Metallifer, Vogin de Leibuch, Erniuth Dai Gu Fillmore 5, Abien Hietsai, Naias Brünhilde, Gyabcy Galla, Nio Hathler, Krakenbeal Mejojo
IV. Destroyer Group (HQ at Kobe)
- X. Light Destroyer Division: Kuun, Paruteno, Majeru, Chandana, Niimu, Ietta, Odetto, Aarora
- XI. Light Destroyer Division: Jiseru, Bakusuchuaru, Dai-mon, Vitta-Shasse, Toki, Shizu, Machi, Kyo
- XII Light Destroyer Division: Rere-Sha, Andoromedaa, Suparichuuta, Akiresu, Ikarosu, Tiita, Kurakarain, Efuroshuune
V. Destroyer Group (HQ at Osaka)
- XIII. Light Destroyer Division: Kare, Pashitea, Aguraia, Tairea, Aukusoo, Arekutoo, Megaera, Teisuhoon
- XIV. Light Destroyer Division: Yuupandara, Atorobosu, Rakishisu, Kuroosoo, Potaru, Firetto, Shearasuta, Ahurochuun
- XV. Light Destroyer Division: Sorutiaru, Kurappu, Parusuetto, Esu-Esu-Eru, Beruda, Turanshu, Meiran, Kurikkaku
VI. Destroyer Group (HQ at Niihama)
- XVI. Light Destroyer Division: Teku, Esuto, Syucha, Paracha, Urikuru, Eruma, Ananda, Rinsa
- XVII. Light Destroyer Division: Sarome, Konkoodo, Puura, Okisutoro, Uiruma, Biirudo, Erara, Ladios Sopp
- XVIII. Light Destroyer Division: Voards Viewlard, Melcorr Litra, King Lader VIII, Emperor Colus III, Empress Elmelah Colus, Queen Lizard Meistner, Amaterasu-no-Mikoto, Amaterasu-no-Mikado
VII. Destroyer Group (HQ at Takamatsu)
- XIX. Light Destroyer Division: Mission Rouath, Lord Ballanka, Queen Almeaios, Roados Dragoon, Decors Weissmel, Grard Sydmian, Dr. Chrome Ballanche, Dr. Prisen Corks
- XX. Light Destroyer Division: Dr. Morard Carbyte, Dr. Steel Koop, Aisha Codante, Landwand Spacorn, Falk U. Rogner, Lie Ex, Spector, Dr. Dippa Dorpos
- XXI. Light Destroyer Division: Hind Kill, Leopard Crytharis, Urazen Sie, Poesche Nomien, Sharie Randers Krötenschwanz, Bijotorn Corlala, State Ballo Kaiedia, Nu. Suoad Graphight
VIII. Destroyer Group (HQ at Tokushima)
- XXII. Light Destroyer Division: Iemrah Lout Jajas, Mishalu Ha Lonn, John Weinzel, Allen Braford, Maximum Holtfors Balance Kaien, Qukey, Bugle de Leizer, Ko Fan Shiemar
- XXIII. Light Destroyer Division: Amaterasu dis Greens Ooe LED, Huselles Carliey, Eidrian Tag, Myoury Kinky, Sir Bester Orbit, Picking Harres, Vralgo Kentauri, Blreno Canzian
- XXIV. Light Destroyer Division: Barbaluse V., Trao Ballanka, Mell Sacheir, Mell Rince Usare Tama, Zoom, Daizina Meister, Label Judah, Maiyu Sukat
I. Coast Defense Group (HQ at Hiroshima)
- I. Coast Defense Division: CDBB Chikan Chuui, MM Hideyoshi Hashiba
- II. Coast Defense Division: CDS Atatake, CDS Urarake
- III. Coast Defense Division: CDS Atsusa, CDS Zansho, CDS Asasamu
- IV. Coast Defense Division: CDS Tonbogiri, CDS Kumogiri, CDS Omoikane, CDS Ichimonji, CDS Munechika, CDS Yukimitsu, CDS Muramasa
I. Coast Assault Group (HQ at Hiroshima)
- I. Coast Assault Division: Go ni I-1, Go ni I-2, Go ni I-3, Go ni II-1
- II. Coast Assault Division: Go ni I-4, Go ni I-5, Go ni I-6, Go ni II-2

Submarine Fleet
Commander-in-Chief Submarine Fleet: Vice Admiral Ominato Naotaro
I. Submarine group (stationed at Sakura-jima submarine base, Kagoshima)
Large Submarine Group: I-1, I-2
Small Submarine Group: I-3, I-4, I-5, I-6, I-7
Coast Submarine Group: IC-1, IC-2, IC-3, IC-4, IC-5, IC-6, IC-7, IC-8, IC-9, IC-10, IC-11, IC-12, IC-13, IC-14, IC-15, IC-16, IC-17, IC-18, IC-19, IC-20, IC-21, IC-22, IC-23, IC-24, IC-25, IC-26, IC-27, IC-28, IC-29, IC-30, IC-31, IC-32, IC-33, IC-34, IC-35, IC-36, IC-37, IC-38, IC-39, IC-40, IC-41, IC-42, IC-43, IC-44, IC-45, IC-46, IC-47, IC-48, IC-49, IC-50, IC-51, IC-52, IC-53, IC-54, IC-55, IC-56, IC-57, IC-58, IC-59, IC-60, IC-61, IC-62, IC-63, IC-64, IC-65
Ocean Going Submarine Group: IO-1, IO-2, IO-3, IO-4, IO-5, IO-6, IO-7, IO-8, IO-9, IO-10, IO-11, IO-12, IO-13, IO-14

Others spread across Japan (no exact locations revealed by the Imperial Navy)
Commander-in-Chief Miscellaneous Forces: Vice Admiral Yamanashi Katsunoshin
- Midget Submarines:
IM-1, IM-2, IM-3, IM-4, IM-5, IM-6, IM-7, IM-8, IM-9, IM-10, IM-11, IM-12, IM-13, IM-14, IM-15, IM-16, IM-17, IM-18, IM-19, IM-20, IM-21, IM-22, IM-23, IM-24, IM-25, IM-26, IM-27, IM-28, IM-29, IM-30, IM-31, IM-32, IM-33, IM-34, IM-35, IM-36, IM-37, IM-38, IM-39, IM-40, IM-41, IM-42, IM-43, IM-44, IM-45, IM-46, IM-47, IM-48, IM-49, IM-50, IM-51, IM-52, IM-53, IM-54, IM-55, IM-56, IM-57, IM-58, IM-59, IM-60, IM-61, IM-62, IM-63, IM-64, IM-65, IM-66, IM-67, IM-68, IM-69, IM-70, IM-71, IM-72, IM-73, IM-74, IM-75, IM-76, IM-77, IM-78, IM-79, IM-80, IM-81, IM-82
- River Gunboats: Atami, Futami, Fushimi, Sumida, Seta, Hira, Hozu, Kataka, Toba, Karatsu, Maiko, Narumi, Suma, Tatara
- River Patrol Boats: RPB-1, RPB-2, RPB-3, RPB-4, RPB-5, RPB-6, RPB-7, RPB-8, RPB-9, RPB-10
- Command/Communication boats: CCB-1, CCB-2, CCB-3, CCB-4, CCB-5, CCB-6, CCB-7, CCB-8, CCB-9, CCB-10
- Patrol Boat Riverine: Pibbaru-1, Pibbaru-2, Pibbaru-3, Pibbaru-4, Pibbaru-5, Pibbaru-6, Pibbaru-7, Pibbaru-8, Pibbaru-9, Pibbaru-10, Pibbaru-11, Pibbaru-12, Pibbaru-13, Pibbaru-14, Pibbaru-15, Pibbaru-16, Pibbaru-17, Pibbaru-18, Pibbaru-19, Pibbaru-20, Pibbaru-21, Pibbaru-22, Pibbaru-23, Pibbaru-24, Pibbaru-25, Pibbaru-26, Pibbaru-27, Pibbaru-28, Pibbaru-29, Pibbaru-30, Pibbaru-31, Pibbaru-32, Pibbaru-33, Pibbaru-34, Pibbaru-35, Pibbaru-36, Pibbaru-37, Pibbaru-38, Pibbaru-39, Pibbaru-40, Pibbaru-41, Pibbaru-42, Pibbaru-43, Pibbaru-44, Pibbaru-45
- MTBs: PT-1, PT-2, PT-3, PT-4, PT-5, PT-6, PT-7, PT-8, PT-9, PT-10, PT-11, PT-12, PT-13, PT-14, PT-15, PT-16, PT-17, PT-18, PT-19, PT-20, PT-21, PT-22, PT-23, PT-24, PT-25, PT-26, PT-27, PT-28, PT-29, PT-30, PT-31, PT-32, PT-33, PT-34, PT-35, PT-36, PT-37, PT-38, PT-39, PT-40, PT-41, PT-42, PT-43, PT-44, PT-45, PT-46, PT-47, PT-48, PT-49, PT-50, PT-51, PT-52, PT-53, PT-54, PT-55, PT-56, PT-57, PT-58, PT-59, PT-60, PT-61, PT-62, PT-63