Appendix G
Japanese Order of Battle in Eastern MindanaoAPPENDIX G-1
100TH DIVISION, 17 APRIL 1945Davao District Unit (Lt. Gen. Jiro Harada, Commanding General, 100th Division)
100th Division Headquarters Unit
Headquarters, 100th Division
Right Sector Unit (Maj. Gen. Ko Tochigi, Commanding General, 76th Infantry Brigade, 100th Division)
167th Independent Infantry Battalion, less two companies
3d Company, 163d Independent Infantry Battalion
100th Division Transportation Unit
1st Field Hospital, 30th Division, less elements
13th Army Hospital
Elements, 35th Army Signal Unit
Elements, 35th Army Information Section
Elements, Provisional Chemical Unit
Elements, 14th Area Army Field Freight Depot
Special Tank Platoon (U.S. light tanks)
Davao Coast Artillery Unit
Davao Line of Communications Squadron
2d Provisional Construction Duty Company
100th Division Signal Unit
100th Division Artillery Unit, less one battery
100th Division Engineer Unit, less five companiesHeadquarters and Brigade Troops, 76th Infantry Brigade
352d Independent Infantry Battalion
353d Independent Infantry Battalion
168th Independent Infantry Battalion, less 3d and 4th Companies
8th Company, 100th Division Engineer Unit
10th Company, 100th Division Engineer Unit
Ide Battalion
Left Sector Unit (Maj. Gen. Muraji Kawazoe, Commanding General, 75th Infantry Brigade)12th Airfield Battalion
3d Naval Battalion, 32d Naval Special Base Force
14th Airfield Battalion114th Naval Air Defense Unit
126th Naval Air Defense Unit
28th Special Machine Cannon Unit (Army)Headquarters and Brigade Troops, 75th Infantry Brigade
164th Independent Infantry Battalion
165th Independent Infantry Battalion
Battery, 100th Division Artillery Unit
Company, 100th Division Engineer Unit
Elements, 1st Field Hospital, 30th Division
1st Naval Battalion, 32d Naval Special Base Force97th Naval Air Defense Unit
2d Naval Battalion, 32d Naval Special Base Force
954th Naval Machine Cannon Unit
25th Special Machine Cannon Unit (Army)
26th Special Machine Cannon Unit (Army)
27th Special Machine Cannon Unit (Army)Force troops, 32d Naval Special Base Force
Headquarters, 32d Naval Special Base Force
129th Naval Air Defense Unit
Hosono UnitHeadquarters, 13th Air Sector Command
8th Airfield Battalion
127th Airfield Battalion
126th Field Airfield Construction Unit
Elements, 26th Airfield Construction Battalion
Strength, Davao District Unit Army ground forces 13,100 Army air forces 2,900 Naval forces 3,675 Noncombatant civilians 12,000 Total 31,575
Digos District Unit (Col. Rinzo Shizuru, Commanding Officer, 163d Independent Infantry Battalion, 100th Division)Headquarters, 163d Independent Infantry Battalion
163d Independent Infantry Battalion, less 3d Company
3d Battalion, 30th Field Artillery Regiment, 30th Division, less 9th and 11th Batteries
Headquarters, 4th Naval Battalion, 32d Naval Special Base Force
Platoon, 100th Division Engineer Unit94th Naval Air Defense Unit
225th Naval Construction Unit
22d Special Machine Cannon Unit (Army)
23d Special Machine Cannon Unit (Army)
24th Special Machine Cannon Unit (Army)
Naval Supply Depot
Naval Flying Unit
Strength, Digos District Unit Army ground forces 1,290 Army air forces 0 Naval forces 2,040 Noncombatant civilians 580 Total 3,910
Sarangani District Unit (after 1 May) (Maj. Makoto Takatsuka, Commanding Officer, 1st Battalion, 30th Field Artillery Regiment, 30th Division)Headquarters, 1st Battalion, 30th Field Artillery Regiment
1st Battalion, 30th Field Artillery Regiment, less 3d Battery
Company, 168th Independent Infantry Battalion
Hospitalized patients, 1st Battalion, 74th Infantry, 30th Division
Elements, 2d Field Hospital, 30th Division
Naval Construction Unit
Naval Air Defense Unit
Naval Flying Unit
Strength, Sarangani District Unit Army ground forces 1,050 Naval forces 450 Total 1,500
Kingking District Unit (east coast of Davao Gulf)Company, 167th Independent Infantry Battalion
Company, 168th Independent Infantry Battalion
Strength, Kingking District Unit Army ground forces 400 Total 400
Total Japanese Strength in the 100th Division Area Army ground combat and service elements, including civilians inducted into the Army ground echelons, November 1944-April 1945 15,840 Army air force elements, all of the service category but some armed as auxiliary infantry 2,900 Naval combat and service elements 6,165 Noncombatant, nonmilitarized civilians 12,580 Grand total 37,485 Subtotal of trained ground combat effectives 100th Division and attached units 8,320 32d Naval Special Base Force 500 Total 8,820 APPENDIX G-2
100TH DIVISION REORGANIZATION OF MID-MAY
(Major Combat Units Only)Headquarters, 100th Division (Lt. Gen. Jiro Harada)
Right Front Line Unit (Maj. Gen. Muraji Kawazoe, Commanding General, 75th Infantry Brigade)
Headquarters and Brigade Troops, 75th Infantry Brigade
Left Front Line Unit (Maj. Gen. Ko Tochigi, Commanding General, 76th Infantry Brigade)
164th Independent Infantry Battalion, less one company
165th Independent Infantry Battalion, less one company
168th Independent Infantry Battalion, less one company
Company, 166th Independent Infantry Battalion
Remnants, 163d Independent Infantry Battalion
Remnants, 3d Battalion, 30th Field Artillery Regiment, 30th Division
Battery, 100th Division, Artillery Unit
Reinforced company, 100th Division Engineer UnitHeadquarters and Brigade Troops, 76th Infantry Brigade
Left District Unit (Rear Adm. Naoji Doi, Commanding Officer, 32d Naval Special Base Force)
352d Independent Infantry Battalion
353d Independent Infantry Battalion
Ide Battalion
167th Independent Infantry Battalion, less two companies
3d Naval Battalion, 32d Naval Special Base Force
100th Division Artillery Unit, less one battery (actual strength is about one battery)
Two companies, 100th Division Engineer UnitHeadquarters and Service Troops, 32d Naval Special Base Force
1st Naval Battalion
2d Naval Battalion
Remnants, 4th Naval Battalion
Company, 164th Independent Infantry Battalion
Company, 165th Independent Infantry Battalion
Hosono UnitAPPENDIX G-3
30TH DIVISION, 17 APRIL 1945
Eastern Sector Unit
Headquarters, 3d Battalion, 41st Infantry, 30th Division
3d Battalion, 41st Infantry
Platoon, 1st Battalion, 41st Infantry
1st Company, 19th Shipping Engineer Regiment
Surigao Coast Artillery Unit
Elements, 30th Division Ordnance Service Unit
Miscellaneous army units
Miscellaneous naval units
Strength, Eastern Sector Unit Army ground forces 1,900 Naval forces 300 Total 2,200
Northern Sector Unit (Col. Toshiro Nawa, Commanding Officer, 30th Reconnaissance Regiment)Headquarters, 30th Reconnaissance Regiment, 30th Division
30th Reconnaissance Regiment, less 3d Company
Headquarters, Del Monte Sector Air Force Unit
1st Battalion, 77th Infantry, 30th Division
3d Company, 1st Battalion, 74th Infantry, 30th Division
19th Shipping Engineer Regiment, less 1st Company
15th Debarkation Unit
61st Anchorage Headquarters
Provisional Artillery Battery, 30th Field Artillery Regiment
Reinforced company, 30th Engineer Regiment102d Airfield Battalion, less elements
103d Airfield Battalion
1st Special Airfield Construction Unit
Elements, 125th Field Airfield Construction Unit
Elements, 37th Airfield Battalion
Miscellaneous 2d Air Division units
Strength, Northern Sector Unit Army ground forces 2,100 Army air forces 2,400 Total 4,500
Central Sector Unit (Col. Kan Negishi, Commanding Officer, 74th Infantry, 30th Division)
Headquarters, 74th Infantry, 30th Division
74th Infantry, less 1st Battalion
Valencia Sector Air Force Unit
6th Company, reinforced, 77th Infantry
3d Company, 30th Reconnaissance Regiment
Headquarters, 30th Field Artillery Regiment2d Battalion, 30th Field Artillery Regiment
Company, 30th Engineer Regiment
3d Battery, 1st Battalion, 30th Field Artillery RegimentRear Strong Point Construction Force
Headquarters, 31st Air Sector Command
Valencia Sector Force
32d Airfield Battalion
37th Airfield Battalion, less elements
125th Field Airfield Construction Unit, less elements1st Repair Depot, Manila Air Depot
Headquarters, 3d Airfield Construction Unit
8th Special Airfield Construction Unit
33d Airfield Battalion
18th Special Machine Cannon Unit (Army)
19th Special Machine Cannon Unit (Army)
8th Independent Maintenance Unit, 14th Field Air Depot
1st Branch Depot, 2d Repair Depot
Headquarters, 1st Signal Unit
Miscellaneous 2d Air Division units
Strength, Central Sector Unit Army ground forces 2,900 Army air forces 2,600 Total 5,500
30th Division Headquarters Unit (Lt. Gen. Gyosaku Morozumi, Commanding General, 30th Division) (Located in Central Sector Unit's Area)Headquarters, 30th Division
30th Transportation Regiment, 30th Division
Two companies, 30th Engineer Regiment
2d Field Hospital, 30th Division
4th Field Hospital, 30th Division
4th Company, 1st Battalion, 74th Infantry
Water Supply and Purification Unit, 30th Division
Signal Unit, 30th Division
Elements, Ordnance Service Unit, 30th Division
Sick Horse Depot, 30th Division
Miscellany
Strength, Headquarters Unit Army ground forces 1,000
Southern Sector Unit (Col. Koritaki Ouchi, Commanding Officer, 30th Engineer Regiment)Headquarters, 30th Engineer Regiment, 30th Division
30th Engineer Regiment, less four companies
7th Company, 100th Division Engineer Unit
9th Company, 100th Division Engineer Unit
1st Battalion, 74th Infantry, less two companies
3d Company, 166th Independent Infantry Battalion, 100th Division, less two platoons
1st Field Hospital, 30th Division
Medical Service Unit, 30th Division (Murase Battalion)
Strength, Southern Sector Unit Army ground forces 2,500
Western Sector Unit (Lt. Col. Yutaka Takumi, Commanding Officer, 166th Independent Infantry Battalion)Headquarters, 166th Independent Infantry Battalion, 75th Brigade,
100th Division
166th Independent Infantry Battalion, less 3d Company (less two platoons)
1st Company, 12th Airfield Battalion
Elements, Medical Service Unit, 30th Division
Elements, 4th Company, 100th Division Engineer Unit
Miscellany
Strength, Western Sector Unit Army ground forces 1,350 Army air forces 150 Total 1,500
Total Strength in the 30th Division Area Army ground combat and service elements 11,750 Army air force elements, all of the service category but some armed as auxiliary infantry 5,150 Naval forces 300 Grand total 17,200 Subtotal of trained ground combat effectives 30th Division and attached units 5,800 5,800
APPENDIX G-4
ORDER OF BATTLE OF JAPANESE FORCES ALONG THE NORTHWESTERN SECTION OF THE KIBAWE-TALOMO TRAILCa. 10 May 45
Command Groupment, Chief of Staff, 35th Army (Maj. Gen. Yoshiharu Tomochika)
Chief of Staff's Office
Elements, 35th Army Signal Unit
Headquarters, 58th Field Road Construction Battalion
100th Division Field Hospital
13th Southern Army Hospital58th Field Road Construction Battalion
Remnants, 4th, 7th, and 9th Companies, 100th Division Engineer Unit
1st and 2d Provisional Construction Duty Companies
Platoon, 37th Construction Duty Company
Company, 30th Transportation Regiment, 30th Division
Elements, Medical Service Unit, 30th Division
One-half Machine Gun Company, 1st Battalion, 74th Infantry
Stragglers, rifle companies, 1st Battalion, 74th Infantry
Elements, 1st Shipping Engineer Replacement Unit
Elements, 3d Company, 19th Shipping Engineer Regiment
Service troops 750 Combat troops 250 Total 1,000
Added in mid-JuneUnderstrength company, 163d Independent Infantry Battalion, 100th Division
Added in late July
Understrength company, 353d Independent Infantry Battalion, 100th DivisionRemaining remnants, 353d Independent Infantry Battalion, 100th Division
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