Home Page World War II Armed Forces — Orders of Battle and Organizations Last Updated 06.06.2006
Imperial Japanese Army
Organization
1941 Infantry Division (triangular)
8 December 1941
 
1941 Infantry Division (triangular)
 
Symbols Glossary
 
This depicts a typical organization. Actual organizations and equipment could vary from unit by unit. On paper, the triangular (three infantry regiment) Infantry Division had about 19,000 to 21,000 men. But the divisions were seldom as neat and tidy as this diagram. Elements were consistently being attached or detached, so that some divisions had as few as 14,000 men and some as others as many as 28,000.

Also the divisions' own units did not not always have the same size or configuration. A typical e ample would be the cavalry "regiment". In some divisions (such as in the diagram above) this was a motorized unit with its own light tanks, in others it was a battalion sized unit of horse cavalry, [see Infantry Division (square)], and in some divisions a reconnaissance unit was missing altogether.

The artillery suffered similar variations being equipped with different types and numbers of guns, etc. The size of the Transport Regiment also tended to vary, depending on the mission assigned to the division, and whether the regiment itself was horse-drawn, partially or wholly motorized.

 
Infantry Divisions (Triangular)
Division
  Commanding General
Infantry Artillery Recon
"Rgt"
Engr
"Rgt"
Other
Units
Notes
Hqs Rgt Rgt Rgt Hqs Rgt Equipment
1
  LTG Mitsuo NAKAZAWA
1 1 49 57 1 Fld   9   75mm
18 105mm
  9 150mm
1 Recon 1 (3)
2
  LTG Masao MARUYAMA
2 4 16 29 2 Fld 18   75mm
  9 150mm
2 Recon 2 2  
4
  LTG Norizo KITANO
4 8 37 61 4 Fld 24   75mm
24 105mm
4 Cav 4 4  
6
  LTG Masatane KANDA
6 13 23 45 6 Fld 27   75mm 6 Cav 6 6  
7
  LTG Gyoichi KOITO
7 26 27 28 7 Mtn 36   75mm 7 Recon 7 7  
8
  LTG Masaki HONDA
8 5 17 31 8 8 Fld 12   75mm
24 105mm
12 150mm
8 Recon 8 8  
9
  LTG Kiichiro HIGUCHI
9 7 19 35 9 Mtn 36   75mm 9 Cav 9 9  
10
  LTG Jiro SOGAWA
10 10 39 63 10 Fld 12   75mm
24 105mm
10 Recon 10 10  
11
  LTG Takashi TAKAMORI
11 12 43 44 11 11 Mtn 36   75mm 11 Cav 11 11  
12
  LTG Yukio KASAHARA
12 24 46 48 24 Fld 12   75mm
24 105mm
12 Recon 12 12 (2)
14
  LTG Mitsu KAWANAMI
14 2 15 59 14 20 Fld 12   75mm
24 105mm
12 150mm
14 Recon 14 14  
15
  LTG SAKAI Naoji
15 51 60 67 21 Fld 36   75mm 15 15 (1) (4)
16
  LTG Susumu MORIOKA
16 9 20 33 22 Mtn 36   75mm 16 Recon 16 16 (8)
17
  LTG Morito HIRABAYASHI
17 53 54 81 23 Fld 36   75mm 17 Recon 17 17 (1)
21
  LTG Hisakazu TANAKA
62 82 83 21 Mtn 36   75mm 21 21  
22
  LTG Katsumi OHTA
22 84 85 86 52 Mtn 36   75mm 22 22 (1)
23
  LTG Kanji NISHIHARA
23 64 71 72 23 13 Fld 12   75mm
12 150mm
23 Recon 23 23  
24
  LTG Mitsuru KAWANAMI
24 22 32 89 24 42 Fld 12   75mm
12 105mm
12 150mm
24 Recon 24 24  
25
  LTG Yaezo AKASHI
25 14 40 70 25 15 Fld 12   75mm
24 105mm
12 150mm
25 Cav 25 25  
26
  LTG Otosaburo YANO
26 11 12 13 11 Fld ? 26 Recon 26 26  
27
  LTG Nobumasa TOMINAGA
27 1 China 2 China 3 China 27 Mtn 36   75mm 27 Recon 27 27  
28
  LTG Taizo ISHIGURO
28 3 30 36 28 Mtn 24   75mm
12 105mm
28 Cav 28 28  
29
  LTG Toshimichi UEMURA
38 50 29 Mtn 36   75mm 29 Cav 29 29  
32
  LTG Tetsuzo IDE
32 210 211 212 32 Fld 36   75mm 32 32 (1)
33
  LTG Shozo SAKURAI
33 213 214 215 33 Mtn 36   75mm 33 33  
34
  LTG Shigeru OHGA
34 216 217 218 34 Fld 36   75mm 34 Recon 34 34  
35
  LTG Kumakichi HARADA
35 219 220 221 35 Fld 24   75mm 35 35  
36
  LTG Mitsuru IZEKI
36 222 223 224 36 Mtn 36   75mm 36 36 (1)
37
  LTG Yuichiro NAGANO
37 225 226 227 37 Mtn 36   75mm 37 37 (1)
38
  LTG Tadayoshi SANO
38 228 229 230 38 Mtn 36   75mm 38 38 (1)
39
  LTG Raishiro SUMITA
39 231 232 233 39 Fld 36   75mm 39 Recon 39 39  
40
  LTG Seiichi AOKI
40 234 235 236 40 Mtn 36   75mm 40 Cav 40 40  
41
  LTG Noritsune SHIMIZU
41 237 238 239 41 Mtn 36   75mm 41 41  
48 (partially motorized)
  LTG Yuitsu TSUCHIHASHI
48 1 Taiwan 2 Taiwan 47 48 Fld 36   75mm
12 105mm
48 Recon 48 48 (7)
51
  LTG Hidemitsu NAKANO
51 66 102 115 51 14 Fld 24   75mm
12 105mm
51 Recon 51 51  
52
  LTG Shunsaburo MUGIKURA
52 69 107 150 16 Mtn 36   75mm 52 Cav 52 52  
53
  LTG Masao BABA
53 119 128 151 53 Fld 24   75mm
12 105mm
53 Recon 53  
54
  LTG Shihachi KATAMURA
54 111 121 154 54 Fld 24   75mm
12 105mm
54 Recon 54 54  
55
  LTG Hiroshi TAKEUCHI
112 114 143 55 Mtn 36   75mm
12 105mm
55 Cav 55 55 (5)
56
  LTG Masao WATANABE
56 113 146 148 56 Fld 36   75mm 56 Recon 56 56 (1)(6)
57
  LTG Michisada OSAKO
57 52 117 132 57 57 Fld 24   75mm
12 105mm
57 Recon 57 57  
104
  LTG Koichi KOMODA
104 108 137 161 104 Fld 36   75mm 104 Recon 104 104  
Guards (motorized)
  LTG Takumaro NISHIMURA
Guards 3 Guards 4 Guards 5 Guards Guards Fld 24   75mm
12 105mm
Guards Recon Guards Guards (9)
Division
  Commanding General
Hqs Rgt Rgt Rgt Hqs Rgt Equipment Recon
"Rgt"
Engr
"Rgt"
Other
Units
Notes
Infantry Artillery
Notes:
   (1) Infantry Brigade Group had 1 tankette company
   (2) But: 18th Transport Regiment
   (3) Also: Tank Unit, 1st Division
   (4) Only a Reconnissance Company
   (5) Elements assigned to South Seas Detachment under 55th Infantry Commander.
   (6) The 146th Infantry Regiment operated independently as the "Sakaguchi Detachment" until 19.04.42.
   (7) Each infantry regiment had one motorized, one bicycle, and one foot battalion. Three of the four artillery battalions were motorized.
   (8) One battalion of each infantry regiment was bicycle mounted. One battalion of the artillery regiment was motorized.
   (9) Only the Guards division was a "motorized" triangular division, being equipped with 500 trucks. The trucks were for the heavy equipment
         and the artillery, whereas every soldier not riding in a motor vehicle rode a bicycle.
 
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