World War II Armed Forces — Orders of Battle and Organizations

Last Updated 07.01.2014

Commanders of Submarine Squadrons
In cooperation with Jeff Donahoo

The format for names is Japanese style: rank; last name, first name; (if known, Japanese Naval Academy at Etajima class), note that traditionally it indicated the imperial year, which was based on the mythical founding of Japan by Emperor Jimmu in 660 BC. Dates are given thus: day.month.year Commanders marked with * are known to have died.

Submarine Squadron 1 Active:  10.07.1914–15.01.1944 Commander:     01.05.1941–11.08.1941 = RAdm  Sukigara, Tamazo [37]     11.08.1941–15.04.1942 = RAdm  Sato, Tsutomu [40]     15.04.1942–22.10.1942 = VAdm  Yamazaki, Shigeaki [41]     22.10.1942–29.03.1943 = RAdm  Mito, Hisashi [42]     29.03.1943–15.01.1944 = RAdm  Kouda, Takero [41] Flagship:     21.11.1941-01.08.1943 = SS  I-9     15.09.1943-15.01.1944 = SS  I-11 Tender:     15.11.1940–15.12.1941 = AS  Yasukuni Maru     15.12.1941–15.01.1944 = AS  Heian Maru Base: Kwajalein, Marshalls Units:     – Submarine Division 1     – Submarine Division 2     – Submarine Division 3     – Submarine Division 4 Deactivated:  15.01.44 Submarine Squadron 2    under 6th Fleet       • R.Adm Yamazaki Shigeaki 12.41 – 02.42       • R.Adm Ichioka Hisashi 02.42 – 08.42     base: Kwajalein, Marshalls     flags: SS I 7 & I-10     tender: AS Santos Maru     units: – Submarine Division 7                – Submarine Division 8     deactivated 08.42 Submarine Squadron 3    under 6th Fleet       • R.Adm Miwa Shigeyoshi (39) 12.41 – 04.42       • R.Adm Kono Chimaki 04.42 – 01.43       • R.Adm Komazawa Katsumi 01.43 – 09.43     base: Kwajalein, Marshalls     flag: SS I-8     tender: AS Taigei     units: – Submarine Division 11                – Submarine Division 12                – Submarine Division 20     deactivated 09.43 Submarine Squadron 4    under Combined Fleet       • R.Adm Yoshitomi Setsuzi (39) 12.41 – 04.42     base: Hiroshima, Japan     flag: CL Kinu     tender: AS Nagoya Maru     units: – Submarine Division 18                – Submarine Division 19                – Submarine Division 21     deactivated 04.42 Submarine Squadron 5    under Combined Fleet       • R.Adm Daigo Tadashige 12.41 – 07.42    deactivated 07.42     base: Hiroshima, Japan     flag: CL Yura     tender: AS Rio de Janeiro Maru     units: – Submarine Division 28                – Submarine Division 29                – Submarine Division 30     deactivated 04.42 Submarine Squadron 6    under 3rd Fleet       • R.Adm Kono Chimaki 12.41 – 04.42     base: Takao, Taiwan (?)     flag: ?     tender: AS Chogei     units: – Submarine Division 9                – Submarine Division 13     deactivated 10.04.42 Submarine Squadron 7    under 4th Fleet       • R.Adm Onishi Shinzo 11.41 – 06.42       • R.Adm Yoshitomi Setsuzu (39) 04.42 – 01.43       • R.Adm Harada Kaku 01.43 – 12.43       • R.Adm Owada Noburu (06.44)     base: Truk, East Carolines     flag: ?     tender: AS Jungei     units: – Submarine Division 26                – Submarine Division 27                – Submarine Division 33 Submarine Squadron 8    activated 03.42       • R.Adm Ishizaki Noboru 03.42 – 8.43       • R.Adm Ichioka Hisani 08.43 – 08.44       • R.Adm Uozumi Jisaku 08.44 – 02.45 Submarine Squadron 11       • R.Adm Ishizaki Noboro 08.43 – (?)       • R.Adm Daigo Tadashige 04.43 – 11.43 (?)       • R.Adm Nishina Kozo 12.44 – 09.45 Kure Submarine Squadron     under Kure Naval District       • R.Adm Daigo Tadashige 07.42 – 04.43       • V.Adm Yamasaki Shigeaki 12.43 – 07.44       • V.Adm Daigo Tadashige 08.44 – 05.45       • V.Adm Ichioka Hisashi 05.45 – 09.45     base: Kure, Japan