Submarine Division 22

Activated	Deactivated	Boats	Formations	Successes	Notes
01/12/1921 25/02/1943	01/04/1935 10/08/1944	RO-23=15/06/1923-01/04/1935 RO-24=01/12/1921-01/04/1935 RO-25=01/12/1921-26/04/1924 RO-25=01/03/1926-01/12/1927 01/04/1935=Deactivated; I-177=25/02/1943-01/08/1944 I-178=25/02/1943-01/09/1943+ I-180=25/02/1943-10/07/1944+ I-182=10/08/1943-01/12/1943+ I-181=20/08/1943-30/04/1944+ I-185=20/12/1943-10/08/1944+ I-184=31/01/1944-10/08/1944+ I-183=28/04/1944-10/08/1944+ 10/08/1944=Deactivated;	Mako Defence Div.= 01/12/1921-01/12/1922 Sasebo Defence Div.;Sasebo ND= 01/12/1922-01/12/1924 Chinkai Defence Div.= 01/12/1924-01/12/1925 Sasebo Defence Div.;Sasebo ND= 01/12/1925-15/11/1934 Sasebo ND= 15/11/1934-01/04/1935 01/04/1935=Deactivated ?;3rdReserve ? KureSub.Ron;Kure NDF= 25/02/1943-15/03/1943 Sub.Ron.3;6thFleet;Combined Fleet= 15/03/1943-15/09/1943 6thFleet;Combined Fleet= 15/09/1943-10/08/1944 10/08/1944=Deactivated;	W'ship sunk:0; W'ship dam: 0; M'ship sunk: 06@030674t; M'ship dam: 02@007713t; Total sunk: 06@030674t; Total dam: 02@007713t; Total: 08@038387t;	CO: 01/04/1935=Deactivated; CO:25/02/1943-05/11/1943= Cpt.Nishino Kozo; [48] CO:05/11/1943-31/01/1944= Cpt.Maejima Toshihide; [48] CO:31/01/1944-20/ 05/ 1944= Cpt.Kayahara Yasuchika ; [49]+KIA (I-180); CO:20/ 05/ 1944-10/08/1944= Vacant; 10/08/1944=Deactivated;

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