The Pacific War Online Encyclopedia: Japanese 4 Fleet (original) (raw)
4 Fleet was a regional force organized in 1937 to defend the Mandates. During the Centrifugal Offensive, it was given responsibility for seizing nearby Alliedpositions, such as Rabaul, Wake Island, and the Gilberts, of which only Wake was strongly defended.
CombinedFleet.com places AO Irowith Wake Invasion Force. However, no other source mentions an oiler with Wake Invasion Force. Rottman (2002) places 4 Fleet at Palau until February 1942 but this is not confirmed by any other source.
CL Kashima
AH Hikawa Maru
ACM Mogamigawa Maru(7479 tons)
ARC Yomabato Maru(5000 tons)
AW Amakasu Maru #1 (1913 tons)
AG Tateyama Maru(1990 tons)
APKamakura Maru (7700 tons, 17.5 knots)
AP Chiyo Maru(4700 tons)
AP Haruna Maru(10,421 tons, 15.5 knots)
AP Hokkai Maru(8416 tons, 16 knots)
AO Kaijo Maru #2 (13,305 tons, 13.5 knots)
AR Matsue Maru
APD PB-32 (with Wake Invasion Force)
APD PB-33 (with Wake Invasion Force)
CX Kongo Maru (with Wake Invasion Force)
CX Kinryu Maru (with Wake Invasion Force)
2 Maizuru SNLF(with Wake Invasion Force)
Cruiser Division 18 (Marumo; with Wake Invasion Force)
CL Tenryu
CL Tatsuta
Minesweeper Division 19 (Shima)
ACM Tenyo Maru(10,150 tons, 13.5 knots)
CM Okinoshima(with Gilbert Islands Force)
CM Tokiwa (9240 tons; with Gilbert Islands Force)
CM Tsugaru(4000 tons; with Guam Invasion Force)
Destroyer Squadron 6 (Kajioka)
CL Yubari (with Wake Invasion Force)
Destroyer Division 29
DD Hayate (with Wake Invasion Force)
DD Oite (with Wake Invasion Force)
DD Asanage (with Gilbert Islands Force)
DD Yumage (with Gilbert Islands Force)
Destroyer Division 30 (with Wake Invasion Force)
DD Kisaragi
DD Mochizuki
DD Mutsuki
DD Yayoi
Submarine Squadron 7 (Onishi.; at Kwajalein)
AS Jingei
Submarine Division 26 (en route Wake)
SS Ro-60
SS Ro-61
SS Ro-62
Submarine Division 27
SS Ro-67 (en route Gilbert Islands)
Submarine Division 33 (en route Howland Island)
SS Ro-63
SS Ro-64
SS Ro-68
3 Base Force (Palau Islands)
Minesweeper Division 13
AMc Ataka Maru #3
AMc Tomazono Maru #3
AMc Tokasago Maru
AMc Toroshima Maru
Gunboat Division 4
PG Edo Maru(1299 tons)
PG Saiko Maru
PG Fukuyama Maru(3581 tons, 15.5 knots)
Subchaser Division 55
PC Showa Maru #5 (217 tons)
PC Nichi Maru #1
PC Gamitsu Maru
PC Showa Maru #3 (222 tons)
16 Naval Air Group (at Peleliu)
4 Base Force (Moizumi; at Truk)
PG Choko Maru #2 (2629 tons)
PG Choan Maru #2 (2613 tons)
PG Heijo Maru(2627 tons)
AN Koei Maru(863 tons)
PC Takunan Maru #10 (343 tons)
Minesweeper Division 14
AMc Hogomoro Maru
AMc Noshiro Maru #2 (216 tons)
AMc Tama Maru (264 tons)
AMc Tama Maru #2 (264 tons)
Gunboat Division 5
PG Keijo Maru(2626 tons)
PG Nikkai Maru(2562 tons)
PG Seikai Maru(2693 tons)
Subchaser Division 56
SC Tama Maru #8 (279 tons)
SC Toshi Maru #3 (298 tons)
AN Kotobuki Maru #5 (720 tons)
Subchaser Division 57
PG Shonon Maru #15
PC Takunan Maru #2 (343 tons)
AN Kunimitsu Maru
17 Naval Air Group
5 Base Force (Kasuga Atsushi; at Saipan)
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Minesweeper Division 15
AMc Fumi Maru #2 (304 tons)
AMc Seku Maru #3
Gunboat Division 7
PG Kogyoku Maru
PG Shotoku Maru(1964 tons)
PG Hirotama Maru(1911 tons)
PG Shoei Maru(3580 tons)
Subchaser Division 59
PC Sonan Maru #5
PC Sonan Maru #6
AN Shofuku Maru(891 tons)
Subchaser Division 60
PC Kyo Maru #8
PC Kyo Maru #10
AN Shuko Maru(889 tons)
18 Naval Air Group (at Aslito)
6 E7K Alf
6 Base Force (Yatsushiro; at Kwajalein)
PG Fukui Maru
PG Hakkaisan Maru (3311 tons)
PG Kaiun Maru
PG Kaikei Maru
PG Kantori Maru
PG Santos Maru
PG Toyotsu Maru (2930 tons)
Minesweeper Division 16
AMc Shonan Maru #8 (355 tons)
AMc Shonan Maru #9
AMc Tama Maru #3 (258 tons)
AMc Tama Maru #6 (275 tons)
Gunboat Division 8
PG Chokai Maru
PG Daido Maru(2962 tons)
PG Ikunta Maru
PG Nagata Maru(2969 tons)
Subchaser Division 62
PC Takuna Maru #6
PC Takuna Maru #7
AN Katsura Maru (541 tons)
Subchaser Division 63
PC Fumi Maru #3 (370 tons)
PC Shonon Maru #3
AN Kotobuki Maru #3
Subchaser DIvision 64
PC Shonon Maru #10
PC Shonon Maru #11
AN Kashima Maru (879 tons)
Subchaser Division 65
PC Kyo Maru #6
PC Kyo Maru #7
AN Uji Maru
51 Guard Force (at Jaluit)
52 Guard Force (at Maloelap)
53 Guard Force (at Wotje)
19 Naval Air Group
Kwajalein:
Jaluit:
24 Air Flotilla (Goto; at Kwajalein)
24 NAF Transport Unit (11 transports of uncertain type)
AV Kiyokawa Maru (offGuam)
6 E8N Dave
2 E7K Alf
AV Goshu Maru(10,600 tons, 14.5 knots)
Yokohama Air Group (at Maloelap)
Taroa NAS, Maloelap:
21 H6K Mavis
Imiage NAS, Jaluit:
11 H6K Mavis
Chitose Air Group (at Kwajalein)
Roi NAS, Kwajalein:
36 G3M Nell
24 A5M Claude
Taroa NAS, Maloelap:
12 A5M Claude