south - ibiblio · 2018-12-04 · (to . accompany . hncl . 3) japanese . army air . order . of ....
TRANSCRIPT
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South West Pacific Area MILITARY INTELLIGENCE SECTION, GENERAL STAFF
MONTHLY SUMMARY OF ENEMY DISPOSITIONS GROUND AIR NAVY
NO, 18 date: 30 April 1944
CONTENTS
IGENERAL PACIFIC AREA
Ground 1 Table: Enemy Order of Battle 2 Map Enemy Ground Dispositions
Air 3 Map Enemy Air Order of Battle 4 Map Enemy Air Dispositions
Naval 5 Map Enemy Naval Bases & Base Forces 6 Map Enemy Naval Dispositions 7 Map Enemy Shipping Routes
II SOUTH WEST PACIFIC AREA
Ground 8 Table: Enemy Order of Battle 9 Map Enemy Dispositions & Command Boundaries
Air 10 Map Enemy Air Bases 11 Map Enemy Air Order of Battle
111 NORTH EASTERN SECTOR, SOUTH WEST PACIFIC AREA
Ground 12 Table: Enemy Order of Battle 13 Map Enemy Ground Dispositions, General 14 Map Enemy Ground Dispositions, NE New Guinea
Air 15 Map Enemy Air Bases, Dispositions & Order of Battle Naval 16 Map Cumulative Barge Sightings
IV NORTH WESTERN SECTOR, SOUTH WEST PACIFIC AREA
Ground 17 Table: Enemy Order of Battle 18 Map Enemy Ground Dispositions 19 Map Enemy Dispositions, North West New Guinea
Air 20 Map Enemy Air Bases 21 Map Enemy Air Order of Battle
Naval 22 Map22 Map : Enemy Naval Bases, Base Forces & Dispositions 23 Chart: Enemy Merchant Shipping
V MISCELLANEOUS
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11ENEMY ORDER OF BATTLE AND STRENGTHS, GENERAL F&CIFIC AREAENEMY ORDER OF BATTLE AND STRENGTHS, GENERAL F&CIFIC AREA
HBHB30 APRIL30 1944APRIL 1944
DIVISIONS 1DIVISIONS 1 INDIND SPECSPEC ©©rCONV"1rCONV"1 BORDERBORDER GARRIGARRI NAVALNAVAL TOTALTOTAL
LOCATIONLOCATION ARMIESARMIES 3 REGT IND INFIND3 INFREGT 6,7 or6,7 or TOTAL MIXEDMIXEDTOTAL CAYCAY TANK GARRI-GARRI-TANK SONSON LANDINGLANDING STRENGTHSTRENGTH LOCATIONLOCATIONDIVS. bsoyps.bsoyps.DIVS. 8 BNS8 BNS IDIVS BRIGS.BRIGS.IDIVS BRIGS.BRIGS. RESTS, SONSSONSRESTS, UNITSUNITS PARTIESPARTIES (APPROX)(APPROX)
KarafutoKarafuto 10,00010,000SAKHALINSAKHALIN SAKHALINSAKHALINM Brigs.M Brigs.
30,00030,000KURILESKURILES KURILESKURILES
Ist GdsIst Gds785,000785,000JAPANJAPAN 7, 42,7, 43,42, 43, 6464 16,1916,19 JAPANJAPANSEVENSEVEN
47, 5347, 53 1u/i1u/i
19, 3019, 30 TWOTWO 100,000100,000KOREAKOREA KOREAKOREA
1. 8,1. 9,8, 9, 3,5,6?3,5,6?3rd, 4th3rd,4th 10, 11,10, 12,11, 12, 9, 10?9, 10? 1-131-13 1. 2.1. Si2. Si
MANCHURIAMANCHURIA sth, 6thsth, 6th 23, 24,23, 25,24, 25, THIR-THIR- 3rd3rd 11?18?11?18? 4, 5,4, 6j5, 6j 785,000785,000 MANCHURIAMANCHURIAINCL.INCL.TEENTEEN20th20th 28, 29,28, 57,29, 57, 24,24, 7. 8,7. 9,|8, 9,|7171 4 u/i4 u/i
1,2,3,4,1,2,3,4,NORTH CHINANORTH CHINA IstIst 26, 27,26, 32,27, 32, 59,62?59,62? IstIst 1212 400,000400,000 NORTH CHINANORTH CHINA
TEN'TEN' 5,6,7,8,5,6,7,8,12th12th 35, 37,35, 11037, 110 63?, 6963?, 69 4th4th9,159,15
CENTRALCENTRALCHINACHINA
11th11th13th13th
3,13,22,34,3,13,22,34,39,40.61,39,40.61,
116116
58,60,58,60,64,65?64,65?68,7068,70
FOURFOURTEENTEEN
12,12, 13,13,
1717
375,000375,000 CENTRALCENTRALCHINACHINA
SOUTHSOUTH CHINACHINA 23rd23rd 104104 ONEONE 19,2319,23 60,00060,000 SOUTHSOUTH CHINACHINA
FORMOSAFORMOSA MI.SBMI.SB 75,00075,000 FORMOSAFORMOSA
HAINANHAINAN 22?22? Y4Y4 15,00015,000 HAINANHAINAN
PHILIPPINESPHILIPPINES2ndAREA?2ndAREA?
14th14th 14?14? 1616 ONEONE 30?30? 31?31?32?32? 33?33?
.0,11,17.0,11,17 SISI 100,900100,900 PHILIPPINESPHILIPPINES
FRENCHFRENCH INDOINDOCHINACHINA
PICGAPICGA 2121 ONEONE 12?12? 40,000.40,000. FRENCHFRENCH INDOINDOCHINACHINA
THAILANDTHAILAND TGATGA 35,00035,000 THAILANDTHAILAND
BURMABURMA BURMABURMAAREA,AREA,
,, 2,2, 15.15.18,18, 31,31, 33,33, EIGHTEIGHT 1414 15?15? 220,000220,000
BURMABURMA
15,2815,28 54,54, 55,55, 5656
MALAYAMALAYA 16?1816?18 K8K8 .80,000.80,000 MALAYAMALAYA
BORNEOBORNEO 7,0007,000 BORNEOBORNEO
SUMATRASUMATRA 25th25th 2nd2nd Gds,Gds, 44 II TWOTWO 4?4? 86,00086,000 SUMATRASUMATRA
JAVAJAVA 16th16th 46,46,(E1)(E1) ONEONE 2?2? 1313,,14?14? 35,00035,000 JAVAJAVA
CELEBESCELEBES 7,0007,000 CELEBESCELEBES
D.D. NEWNEW GUINEAGUINEASOEMBASOEMBATIMORTIMORHALMAHERAHALMAHERA
19th19th
2nd?2nd?
36,36, 48484646 (El)?(El)?
3(E1)?14(E13(E1)?14(E155
POUR'POUR' XlXl 90,00090,000
D.D.NEWNEW GUINEiGUINEiSOEMBASOEMBATIMORTIMORHALMAHERAHALMAHERA
NEWNEW BRITAINBRITAINNEWNEW IRELANDIRELAND
BthBthAREA.AREA.
17,17, 3838®®
6565BrigBrig
TWOTWO K6.Y3.7K6.Y3.7 60,00060,000 NEWNEW BRITAINBRITAINNEWNEW IRELANDIRELAND
SOLOMONSSOLOMONS 17th17th 1717 (El),(El), 66 ONEONE K7,K7, S6S6 20,00020,000 SOLOMONSSOLOMONS
BRITISHBRITISHNEWNEW GUINEAGUINEA
ADMIRALTYADMIRALTY IS.IS.18th18th 20,20, 41,41,
5151 (Remn)(Remn)THREETHREE MM2,2, S5S5 60,00060,000
BRITISHBRITISHNEWNEW GUINEAGUINEA
ADMIRALTYADMIRALTYIS.IS.
MANDATEDMANDATEDISLANDSISLANDS
5252 ONEONE ElEl 1616 Y1.2Y1.2 S2S2K2,4K2,4 25,00025,000 MANDATEDMANDATED
ISLANDSISLANDS
TOTALSTOTALS 6060 ©©171+171+tttt BrigBrig
10+10+11BrigBrig 2121 2222 1313 1818 3,500,0003,500,000 TOTALSTOTALS
STIMATED STIMATED OPERATIONAL STREW6THSOPERATIONAL STREW6THSSTREN6THS KEY TOKEYKEYSTREN6THS TOTOKEY TO SNIP'SSNIP'SSNIP'SSNIP'SID OPERATID OPERATTIONAL 8 TIONAL 8 NOTESNOTES
(T)- Existence of 44 Division believed probable;(T)- Existence of 44 Division believed probable;16,00016,000Tri Div.Tri Div. existence of 45, 49 and 50 Divisions possible.existence of 45, 49 and 50 Divisions possible.""X.1.1.G.X.1.1.G. 13,00013,000 XX -- KureKure (§)- 122 Inf inMarshalls. 142 Inf possibly still(§)- 122 Inf inMarshalls. 142 Inf possibly still12,50012,500X.1.M.8.X.1.M.8. M -M - MaizuruMaizuru in pi< Both droppe<ifrom brigade.in pi< Both droppe<ifrom brigade.
IUIBrigU Brig 10,00010,000 S SaseboS IJIB's, probablyIJIB's,Sasebo probably-- 0_ Exißtenca of additional formed0_ Exißtenca of additional formedCay. BrigCay. Brig 3,5003,500 V YokosukaV Yokosuka from prdvioUBiy existing formations, also ind-from prdvioUBiy existing formations, also ind-Tk RegtTk Regt 1,0001,000 icated, but not carried herein pending furthericated, but not carried herein pending furtherBor GarrBor Garr 3,0003,000 information. 21st IMB dropped.information. 21st IMB dropped.Ind GarrInd Garr 5,0005,000 (?)- Strengths include Army & Corps(?)- troops plustroops AirStrengths include Army & Corps plus AirSHIPSHIP 1,5001,500 Force Personnel.Force Personnel.
(§)- Does not include an estimated 30,000 Naval(§)- Does not include an estimated 30,000 Navaltroops Koreans.troops Koreans.and 20,000and 20,000--6 Inaddition, there are an estimated 420,0006 Inaddition, there are an estimated 420,000
°° zz°°
-- Chinese and 328,000 Hanchurian Puppet troops. Chinese and 328,000 Hanchurian Puppet troops.„,.., .-, ,*~-r
*4'4Ul.reBg£onB of presence elements 32 and 35„,.., .-, ,*~-r*4'4Ul.reBg£onB of presence elements 32 and 35
y*y*-» """••\u25a0 \u25a0** n •-» """••\u25a0 \u25a0** n • Divisions inDivisions SWPA.in SWPA.
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The enemy's air center of gravity is moving to the north west. His Army and Navy air forces are amalgamating in the face of a direct threat to the Philippines from Hollandia and the Central Pacific.
The Fourth Air Army and the 23d Naval Air Flotilla continue to.be charged with the mission of air defense against S.W.P.A. forces. Our Aitape-Hollandia seizure revealed an attempt to intervene by a mobile Naval Air Task Force organized by the First Naval Air Fleet. (Headquarters at Truk) This Task Force probably consisted of bomber, fighter and reconnaissance groups stripped for tactical employment and mustered from Micronesia, the Philippines and Malaya.
Significant enemy air order of battle changes occurring during the month are, a) Bismarcks -Solomons Sectors Only one Army squadron of the 10th Air Regiment (18 reconnaissance aircraft) is now carried at Rabaul, Elements of the 251 Naval Air Group (18fighters) have joined the two reconnaissance Naval Air Groups (total of 36 floatplanes) remaining at Rabaul. (See Encl. No. 15) b) Philippines-Netherlands East Indies-New Guinea Sectors The 38th Ariry Air Regiment of the Fourth Air Army (9 bombers) has been transferred to the Empire on the basis of intelligence revealing non-arrival in the Philippines. Elements of another of the Fourth Air Army's Regiments, the 58th, (9 bombers) and the 50th Independent Army Squadron(9 reconnaissance aircraft) have been withdrawn by the enemy from this sector to Burma and Manchuria, respectively. Reflecting the enemy 's air reaction to our Aitape and Hollandia seizures, two Naval Air Groups (total 36 bombers, 36 fighters) and elements of five others (probably 50 bombers, 18 fighters and 9 reconnaissance aircraft) were ordered to assemble in the Philippines -Netherlands East Indies-New Guinea sector, principally from Micronesia, with one unit each from Malaya and the Empire,.
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JAPANESE ARMY AIR ORDER OF BATTLE k*»w- •* ' 3Q"A|njh 19/^
Initial Establishment
Trans-Units lation Fs Bs Rs iTtl Location
FIRST Koku-gun Air Army- Japan* Ist Hiko-shidan Air Div Japan
!17 Hiko-dan Air Brig !
Japan (?) 18 Japan (?)
Japan19 20 Japan (?)
25 Japan (?) Ist Hiko-sentai Air Regt 1 27 II127 | Japan (?) 2d |27 | 127 | Japan
| Japan3d |27 I !27 4th I 27 I I j27 | Japan 7th 27 | ;27 | Japan
24th I 27 I I |27 I Japan (?) 38th | 27 I |27 | Japan (?) 54th t 27 I I 127 IJapan 59th I 27 | I |27 | Japan 66th |27 | 127 | Japan (?) 67th 127 i I27. I Japan (?) 98th 127 !27 |Japan (?)|27 II 127
244th i ! 27 | | |27 IJapan 246th i ! 27 27 j Japan
SECOND Koku-gun i Air Army Manchuria*
2d Hiko-shidan Air Div Manchuria 4th Manchuria
2 Hiko-dan Air Brig Manchuria 5 ! Manchuria (?) 6 Manchuria (?)
|10 i Manchuria (?)
t6th Hiko-sentai Air Regt 27 ! 127 IManchuria 9th 1 27 ! i |27 !Manchuria
27th ! 127 I 127 !Manchuria 28th (-) 1 18 | 18 IManchuria (?) 31st i 27 I 127 iManchuria (?)
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27 ! | 127 IManchuria (?) 65th 1271 27 I 127 IManchuria
i74th i 27 I !27 I Manchuria (?) 83d 27 127 IManchuria (?) 90th (-) i j9 | | 97 ! Manchuria 95th i 1 27 I 1 |27 1 Manchuria (?)
50 Dokuritsu Chutai Ind Sq I 19 i 9 !Manchuria (?) 81 9 I 9 !Manchuria ( ? )
FIFTH Koku-gun Air Army China* 3d Hiko-shidan Air Div China
iBth China (?) Air Brig China1Hiko-dan
12 China 13 China (?)
11th Hiko-sentai Air Regt I 27 I j 1 27 IChina 16th 1271 27 i 127 iChina 25th I27 ! ! 127 IChina 44th i - |27 . ,:*27 (China 70th _- m\r, " !27 ! ! i2? IChina (?)* ' 85th I||L J : 127 i .;2J IChinaChina87th !iyf £
" L.^*f IChinaChinar : -ttti££.u
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TransUnits
(
lation |FslFs I Bs Rs Ttl ILocation 4
T
90th (-) Hiko-sentai Air Regt { I18 18 China 21 Dokuritsu Hikotai Ind Unit 9 9 [China (?) 18 Dokuritsu Chutai Ind Sq 9 9 !IChina. 54 9 9 !China 55 i
j
9 9 China i
iTHIRD Koku-gun Air Army i Burma* !sth Hiko-shidan Air Div Burma
9th Burma 4 Hiko-dan Air Brig Burma 7 Burma
Bth Hiko-sentai Air Regt | 27 9 36 Burma 12th !27 27 Burma 21st 27 27 Burma 26th 9 I18 27 Burma (?) 50th 27 27 !Burma 58th 27 27 IBurma 62d 27 27 Burma 64th 27 27 ] Burma 81st 9 9 18 Burma 82d 27 27 Burma (?)
204thv 27 1 27 Burma 83 Dokuritsu Hikotai Ind Unit 9 9 Burma 24 Dokuritsu Chutai Ind Sq 9 9 Burma (?) 71 9 9 Burma (?) 74 9 9 Burma (?) 39 9 9 Burma 91 9 9 Burma
FOURTH Koku-gun Air Army |PI-NEI-NG 6th Hiko-shidan Air Div IPI-NEI-NG
L-7th i 1 IPI-NEI-NG 3 Hiko-dan Air Brig | PI-NEI-NG 8 PI-NEI-NG 9 PI-NEI-NG
14 PI-NEI-NG 22 PI-NEI-NG Kyodo IPI-NEI-NG
sth Hiko-sentai Air Regt | 27 j 27 PI-NEI-NG 10th (-) 9 9 IPI-NEI-NG 13th 36) 36 PI-NEI-NG 14th 27 27 PI-NEI-NG 28th (-) 9 9 IPI-NEI-NG
y33d 27 27 IPI-NEI-NG 34th 27 27 PI-NEI-NG 45th "" 27 27 PI-NEI-NG 60th 27 27 PI-NEI-NG 61st I 27 27 IPI-NEI-NG 63d 27! 27 IPI-NEI-NG
MH!DT ATTPT68th •/ 27 27 !PI-NEI-NG 75th v 27 27 IPI-NEI-NGPI-NEI-NG77th 27! 27 PI-NEI-NG 78th/ I 27 27! PI-NEI-NG
208th I 27 27 !PI-NEI-NG 248th v
> 27 27! PI-NEI-NG 20 Dokuritsu Chutai Ind Sq 9 9| PI-NEI-NG 52 9 9 IPI-NEI-NG 70 9 9 PI-NEI-NG 73 9 9!IiPI-NEI-NG 83 9 9 PI-NEI-NG 93 r 9 9 PI-NEI-NG 1Koku Shashin Tai Photo*UnJ 9 91 PI-NEI-NG
1 *'¥%
T
| Trans- I i !i
Units I lation Fs BsI lation Fs Bs jRs Ttl Locationj JRs ith (-) Hiko-sentai(-) Hiko-sentai Air Regt j 9 910th Bisniarcks
| Solomons*Solomons*' 76 Dokuritsu Chutai Ind Sq | 9 9 !Unlocated
i : j
*Note: 1) Japan includes Kuriles, Bonins, Pescadores and Marcus. 2) Manchuria includes Korea and North China. 3) China includes Central and South China, Hainan, Formosa,
and North Indo-China (N of 15° N). 4) Burma includes Siam, Malaya, Sumatra and South Indo-China. 5) Philippines-NEI (Excluding Sumatra), New Guinea, 6) Bismarcks, Solomons.
(?) Denotes location of unit is doubtful.
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Initial Establishment
T .J__..,..«...|..............M™p-...»™»^.. TI }Trans- ! I
Units lation 1 Fs | Bs [ Rs l Ttl| Location .L~,.,..»....i., \u0084.....__.i....... ...».i,u »£•<
! i ! i !
12th Koku-kantai Air Fleet \ Ii
! Japan 27th Koku-sentai Air Flot f Japan
\ n
I\
105th Koku-tai Air Group ? 9 9 1i Japan 203 6?i i 63 I Japan 221 36 36 i Japan 265 36 1 I 36! Japan (?)
Japan302 54 ! 541 36| 361 Japan341
| 36! Japan345 361 435 i 1 13 IBI Japan 452
!
I 130 30 1 Japan 453 i i24 1 24! Japan 502 I 54 I 9 63! Japan 521 45'1 45!
5
Japan i 79 i Japan553 I
t
\ 721
652 45! 54 99 I Japan 701 24 241 Japan
705 54! 54 1 Japan 752 I 7? I 72 1 Japan 762 136 36[ Japan 906 36 .! | 36| Japan (?) 931 136! 36!
i Japan
951 | 1 lIS 18 Japan (?) Bako ! 91 9i Japan Bihoro 136 j 36 | Japan Chichi jima I 9|l2i 21! Japan Izumi I Ji 91 Japan! 9 !Komatsujima ! 6 6! Japan Kowa |11! 11) Japan Kure 12 j ] 12! 24 i Japan Maizuru j | I 6 6| Japan Miyazake
•: 27! 27 I Japan
Oi i 160 I| I| 60 ! Japan Ominato 16I 16! JapanI 1161I Sasebo (-) 15 |5| 20 i Japan1Tateyama I 18 |18 1 36) Japan Tokashima 61 6! Japan Yokosuka (-)
j 451 42 j33 j 125! Japan
Chinkai Koku-tai Air Group | 12 | 8| 20 1 Manchuria* Gunzan » j 9 1
} i I
91 Manchuria I
254 Koku-tai Air Group 36| | 36! China* 256 27! I 27 1 China Hoihow 27! 36 !1 II 63| China Sama ! 27) It 27! China Sasebo (-) ! 22! 22! China Shanghai I 9! I 9| China Tainan I 9; I 91 China Takao 9! China Takao Gd. District 12'I1 I
;j 12! China
I i { iI
13th Koku-kantai Air Fleet !! {!
Burma* 28th Koku-sentai Air Flot ! Burma (?) ! I I Burma
601** Koku-tai Air Group 81 135 ! 9 I 225 ! Burma
& W
Ttl Location
36 Burma 9 Burma
32 iBurma
23d Koku-sentai PI-NEI-NG* 9 PI-NEI-NG
36 PI-NEI-NG 36 PI-NEI-NG 27 PI-NEI-NG 81 PI-NEI-NG 27 PI-NEI-NG 36 PI-NEI-NG 36 PI-NEI-NG 36 PI-NEI-NG
9 PI-NEI-NG 6 PI-NEI-NG
18 PI-NEI-NG 30 PI-NEI-NG
4 PI-NEI-NG 33 PI-NEI-NG
9 BismarckSolomons*
18 j Bismarck| Solomons*
18 IBismarck-Bismarck-Solomons*
Ist Koku-kantai Air Fleet !Micronesia* 11th Micronesia 14th Micronesia
21st Koku-sentai Air Flot Micronesia (?) 22 25 26
j Micronesia IMicronesia
Micronesia (?)
51 Micronesia 61 Micronesia 62 Micronesia
9 9 Micronesia 151 9 9 Micronesia 132 9 9 Micronesia (?) 201 45 45 Micronesia 202 251 (-)
63 9
63 i Micronesia 9! Micronesia
252 253 261 (-) 263 301
I 36 45 18 45 63
36! Micronesia 45!
i
Micronesia 18! Micronesia 451
! Micronesia
63 Micronesia 321 9 9 Micronesia 331 343 501 (-) 503
36 36
9 27
361 Micronesia 36 Micronesia
91 Micronesia 271 Micronesia
523 36 36 Micronesia 531 36 36 Micronesia 551 36 36 MicronesiaMicronesia552 632 751 (-)
36 63 18
36! Micronesia 63 Micronesia 18 Micronesia
~ fi W, Fv, r, i
• ' * 145|a* 45! Micronesia
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jjUnitsUnits [ lation[ lation I FsI Fs Bs jBs j| Rs| Rs Ttl |Ttl ||Location|Location
„„__...„ „«„„„__...„ „«„ »«^... ,«^»..-««^.»«^... ,«^»..-««^. jjii LL h—ih—i761 (-)761 Koku-tai(-) Koku-tai Air GroupAir Group 99 99 |Micronesia|Micronesia801801 118 : 18:118 I18 IjMicronesiajMicronesia802802 I12I12 1212 MicronesiaMicronesia902902 148148 4848 MicronesiaMicronesia952952 !12!12 Micronesia*1212 Micronesia*Yokosuka Det.Yokosuka Det. 1818 I 18I 18 MicronesiaMicronesia
II11. CARRIERS. iCARRIERS i
Zuikaku*-*Zuikaku*-* 2727 45 727245Shokaku^^ 2727Shokaku^^ 45 727245Hiyo (Hitaka)**Hiyo |(Hitaka)** | 2727 2727 5454Junyo (Hayataka)^* | 2727Junyo (Hayataka)^* | 27 545427Ryuho-^Hf |Ryuho-^Hf | 2727 9 36369Zuiho^ |Zuiho^ | 2121 99 30 !30 !Chitose*** IChitose*** I 2121 99 30 I30 IChiyoda-^- .Chiyoda-^- . 2121 99 30 I30 IHoshoHosho 1212 2424 3636Taiyo (Otaka)Taiyo |(Otaka) | 99 2727 3636Unryu^H'-Unryu^H'- jj !!
ii
UnyoUnyo 99 2727 36 !36 !Taiho***Taiho***Kaiyo-'«'--Kaiyo-'«'--Jinyo^HfJinyo^Hf ||
! i! !i !
Pescadore,Pescadore,*Note: 1) Japan includes Xi*Note: 1) Japan includes Xi
ii
iriles, Bonins,iriles, Bonins, i andi ]and ] ilarcusilarcus..2) Manchuria2) includeManchuria include >s Korea,>s North China,NorthKorea, China,3) China includes C<3) China includes C< sntral & South China,sntral Haii& South China, Haii ian, F-ian, F- Drmosa,Drmosa,
North Indo-China (N of 15° N).. 4) Burma includes Siam, Malaya, Sumatra and South Indo-China. 5) Philippines-NEI (Excluding Sumatra), New Guinea. 6) Bismarcks, Solomons. 7) Micronesia.
**Note: Possibly Car Div 1airplanes shore-based. If so, establishment included twice.
#*tfqjote: No known a/ps assigned.
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enemy'senemy's strengthThec airair in S.W.P.A. continues to decline. Our Aitape-Hollandia seizures have forced the withdrawal of the enemy's remaining air mass to the west through the isolation and consequent neutralization of his remaining Eastern New Guinea, Bismarcks and Solomons air centers*
Last mont#, estimated enemy air strength in Eastern New Guinea, the Bismarcks and the Solomons was estimated at 231 combat aircraft of all types. This strength has now withdrawn to the Philippines -Netherlands East Indies-New Guinea sector (westward from Wakde, inclusive), with Bismarcks-Solomons sector enemy air strength currently appraised at. 23 aircraft, including 15 reconnaissance types. These aircraft have been used only for reconnaissance and administrative purposes.
Currently appraised enemy air strength in the Philippines-Netherlands East Indies-New Guinea sector has increased numerically, now comprising 600 combat aircraft of all types compared with 549 aircraft last month when the enemy's Eastern New Guinea air strength was not included in this sector.
Through the first seven days of our Aitape-Hollandia operations, the enemy's battered Army Air Service remnants tlis» played no capability of even a limited degree of air defense. The enemy's Naval air arm then entered Western New Guinea in a defensive role, probably to attempt prevention of an Allied exploitation to the west of the Aitape-Hollandia successes.
Attrition of enemy air strength in other theaters should continue to prevent a marshalling of enemy Army-Navy air strength capable of stopping cur further forward movements, or of preventing consolidation of our gains, and reinforcement of our amphibious forces on their objectives.
A continued strategic air withdrawal may be expected as our bomber line advances. This willpermit the enemy to conserve his air strength by a) rebuilding his air order of battle beyond fully effective Allied counter air force range and, b) refusing air combat other than on his own terms or against favorable Allied targets of opportunity. The maintenance of this air strength in being willcontinue to affect our operations by enforcing extensive active and passive air defense measures, particularly during forward movement and at our forward installations.
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and BaseT'orces;Enemy Naval Bases As a result of the Allied occupation of Hollandia, Aitape, and Madang enemy Base Forces #7 and #2, which were located at Madang and Hollandia respectively, can no longer be considered to exist. While Base Force #7 was no doubt shifted back toward Wewak, as the Allied Forces advanced on Madang, it cannot be classed as an effective unit. Base Force #2 is believed to have been completely disorganized as a result of the Allied occupation of Hollandia.
Considerable activity was noted in the Tawi Tawi area during the month, and it is believed very probable that the enemy has developed an Advanced Naval Base in that locality, £uch a base is indicated on the attached map.
The Naval Bases at Ponape, Truk, and Woleai were severely pounded by Allied aircraft during April and as a result, Ponape and Woleai can no longer be classed as Advanced Naval Bases. Truk, which only a few months ago was considered to be the largest and best defended enemy Naval Base in the entire Pacific area, must now be classed as only an Advanced Naval Base. Aircraft willnc doubt continue to operate from the three above mentioned atolls, and it is believed that submarines will continue to operate from Truk. However, it is very improbable that the enemy willagain send merchant vessels or warships of any size to this area, As a result of the decline of his Caroline Bases, the enemy is believed to have further developed his facilities at Saipan and Davao, Therefore those bases, which heretofore have been regarded as Advanced Naval Bases, are now classed as Secondary Naval Bases,
There is no information available regarding any significant changes in the status of other Naval Base Forces or Naval Bases.
g~f« "p«^ *""** £/yLvj^
6
(To Accompany End "^ \u25a0I* -tw {.# **•\u25a0 /^^^
Allied Carrier Task Force strike on the enemy base at Palau on 30 March resulted in considerable change in enemy fleet dispositions. It appears that the first enemy reaction to the Allied strike was the withdrawal of almost all of his fleet units, except submarines, from the Central Pacific area, and as of 30 April it is estimated that there were probably not more than 2 light cruisers, possibly 12-14- destroyers and perhaps as many as 35 submarines operating in the entire Central Pacific area. Many of the above mentioned submarines were being employed in transportation and supply runs to the isolated enemy garrisons in the Marshalls and in the Bismarck-Solomon area and, as a result, their offensive striking power was considerably reduced. The heavy fleet units, which were based in the Palau-Truk area prior to the Allied attack on Palau, are believed to have proceeded to the Singapore area where the enemy is apparently conducting training exercises with the major portion of his fleet. It was thought that this fleet would proceed to the Southern Philippines sometime during April so as to be in a more favorable position to counter future Allied moves in the Pacific, bit apparently the strike on Sabang by the British Indian Ocean Fleet caused the enemy to retain these units in the Singapore area until he could determine what further action was to be taken by the British Fleet.
Fleet dispositions in the North Eastern Area and in the South Eastern Area have remained practically unchanged. The North Eastern Area Fleet may have been strengthened to the extent of having one additional heavy cruiser assigned, and in the South Eastern Area the 4-th Southern Expeditionary Fleet may have teen increased by two or three destroyers.
At the present time the strength of the eneny fleet is considered to be greater than it has been at any time since just before the Battle of Midway. Many of his major combat vessels have recently been in drydock where they were refitted and modernized. Several of his carriers, which for a long period of time were employed in ferrying aircraft to his advanced bases, are now believed to be ready to again join the fleet with well trained carrier groups aboard.
It is considered quite possible that those warships now concentrated in Singapore will, as a result of the Allied advances in New Guinea and in the Central Pacific, proceed to, and base in, Southern Philippine waters sometime in May.
(To Accompany End 7
W * &̂ ii SHINING ROUTES 114 *-' l*m
The principal changes in Japanese merchant shipping routes noted during the past month are;
a) Elimination of. traffic from Palau to Hollandia and Wewak.
b) Addition of light traffic from Manokwari to Sarmi and via JapenWakde Id.
c) Establishment of a new route from Tarakan to Ealikpapan and two from Tarakan to Manila, one via Tawi-Tawi and the other via
Strait,Basilan d) Establishment of a route from Miri (NW Borneo) to Manila. c) Establishment of an inter-island route from Manila to
Davao via Cebu and Surigao Straits. f) Establishment of a light traffic route from Saigon to
the Empire via Sama (Hainan).
The following routes are shown on the accompanying map in their relative importance:-
1. Saigon Empire (via Sama)-2. Singapore Empire (via Saigon)-3. Singapore EmpireEmpire
4. Singapore - Empire (via Manila) 5. Singapore - Davao 6. Singapore Manila (via Miri)-7. Singapore BataviaBatavia8. Batavia - Padang 9. Singapore -- Balikpapan
10. Batavia Soerabal^ (via Semarang)Soerabajs 11. Soerabeja Koepang 12; Soerabaja - Balikpapan 13. Soerabaja - Balikpapan (via Macassar) 14. Balikpapan - Palau 15. Macassar - Ambon (via Kendari) 16. Balikpapan - Tarakan 17. Tarakan - Manila (via Tawi-Tawi) 18. Tarakan18. Tarakan - Manila (Inter-island) 19. Tarakan Davao 20. Manila Davao 21. Inter-Island routes --
Pal22. Manila Palau 23. Davao Benado
24.. Davao Ilalmnhera 25; Davao • Palau 26. Halmahera Ambon 27. Halmahera Ambon 28. Halmahera Manokwari 29. Halmahera MacCluer Gulf- -30. Ambon - TanimbarKaimana - Id,31. Manokwari Sarmi Wakde 32. Empire - PalauPalau33. Palau Saipan (via Guam)-34. Palau Truk 35. Empire Saipan-•36, Saipan Truk 37. Guam - Truk 38. Empire Truk
*r"\2* \%»
"* h 1 ') *- »' p jk iiill!**/&!'***>$
ENEMY ORDER OF BATTLE, SOUTH WEST PACIFIC AREA
30 APRIL 1944 £"*>"f% «, «
IMPERIAL GHiIMPERIAL GHi
SOUTHERN EXPEDSOUTHERN FORCEEXPED FORCE
XVIXVI
rarrar TT
EIGHTH AREAEIGHTH AREA
XXXXXX
XVIIXVII _ X_ X XXXX X XX X
X X_X X_ I><l3BI><l3B£<l 6£<l 6
SECOND AREASECOND AREA
XVIIIXVIII IIII
X XX X X XX X X XX X XXXX XX_ XXXX_ XX XXXXXI20XI20 £11X132:£11X132: £lXl3s?^^<3?£lXl3s?^^<3?
XIVXIV
XXXX XX,XX, XXXXGar TpsGar Tps GarGar 6<\u66<\u6
c^ss *m
-H^nxkictO By OCE GHO
10
(To Accompany Encl
Our j|©JLfure of? the' Hollandia A|ip.rcDm| and its satellites, Cyclops, Sentar^J |r^^T.ami. ianc|/the captur^f^ Australian forces of the Madang and Alexishafefi fer?ifes %es^ 2)eft i^iiJnemy tut six air centers in New Guinea; These, with their satellites, are as follows s (See also Ends. 15 and 20).
Wakde Island Air Center 7vTakde Sawar (Formerly known as Sirmi
Iand II). Maffin (Under construction)
Biak Island Air Center Sorido )Bcrokoe) New designations; formerly knovjn
as Sorido I,11, 111. Mokmer )
Noemfoor Island Air Center Kamiri Namber
Manokwari Air Center Manokwari Ransiki Moemi Vferen
Sorong Air Center Jefman Island Senate
BabpAir Center Babo Nabire Mangosah (Formerly known as Cape
Tanahmerah) Sagan (Formerly known as Sagan I) Otawiri (Formerly knwon as Sagan II) Utarom Timoeka
These six air centers afford the enemy facilities for the dispersion of approximately 395 bombers and 403 fighters. However, our increasing use of Hollandia as an Allied air center, conjoined
with Allied counter air force action from Darwin, willprobably result in declining employment of these facilities by the enemy. The mass of his air strength willprobably then be withdrawn to airdromes along the line Ceram-Halmahera-Southern Philippines -Western Carolines.
Conclusions; Full enemy use of his Western New Guinea airdromes willprobably be arrested by our advancing bomber line and accompanying counter air force action.
f^'\ y ,
(To. Accompany End 12)
\]&i*mt9tim!h?imm<*Em ECTOR, S.W.P.A
30 April 1944
a) Hq at Tokyo. Document indicates Bth Area Army directly responsible to Imperial G.H.Q.
b) Hq Rabaul. C/G General Hitoshi IMAMURA. In charge NE Sector, E of 147°. Controls 17th Army. Directly under Imperial G.H.Q. Code GO 7960.
c) Hq at Davao. Commands 2nd, 18th and 19th Armies. Code TERU.
d) Hq Bum? or Buka. C/G Haruyoshi HYAKUTAKE. Charged operations Bougainville area. Code OKI 9811,
c) C/G Lt. Gen. Masatane KANDA, Part 13th Inf lost New Georgia area, but bulk Div located Bougainville. Code AKIRA 9015-?
f)Composition unknown except Kure 7. Believed in Bougainville area.
g) C/G Lt. Gen* Yasushi SAKAI. Withdrawing to Rabaul. Bulk Div New-Britain elements on Bougainville. Code TSUKI 7300-?
h) C/G Lt. Gen. Sadaaki KAGESA. Division decimated Guadalcanal and Buna, reformed and assigned Defense Sector at Rabaul. Bulk Div in Rabaul, with battalion destroyed Admiralty Islands. Code NUMA 8920-?
i) C/G Maj. Gen. Iwao LiATSUDA, Withdrawing to Rabaul. 122nd Regt and 142nd Regt dropped from organization, 141st Regt sole remaining infantry unit. Code NATSU 9850-?
j) Located in Rabaul by documents. Strength not known.
k) Indications bulk Ist Ind Mixed Regiment at Kavieng with battalion destroyed in Admiralties.
1) Bulk believed withdrawn from Solomons to New Ireland. Believed composed of Kure 6, Yokosuka 7 and possibly Maizuru 4. Possibly now dissolved.
m) Hq Wewak area. C/G Lt, Gen. Hitazo ADACHI." Charged operations New Guinea east of 140°. Code MO 7910.
n) C/G Lt. Gen, Shigeru KATAGIRI. Last identified Hansa Bay, possibly withdrawing to Wewak. Code ASA 2050-?
o) C/G Lt. Gen. G^ro MANO. Division believed withdrawing westward from Madang area. Code KAWA 3560-?
p) C/G Lt. Gen. Hidemit su NAKANO, Last identified Wewak. Code MOTO 2800-?
q< Located NW Sector, See Encl No. 17.
(To Accompany End I3)
ENEMY JtSEJI Jbf^TTEE -^STRE^GTH ESTIMATES iM-fe*CISTERN SECTOR, S.vOT.JI? *%W« \u2666\u25a0*WfcF£V 1944
" .
NEW GUINEA;
Withdrawing from Madang area
Withdrawing (?) from Hans a Eay
Wewak
14,000
14,000
22,000
Aitape
Vanimo-Hollandia .
3,000
7,000
Sub-total
BISMARCK ARCHIPELAGOS
Rabaul area \u25a0* 50,000
New Ireland * 10,000
Admiralty Islands 500 100
Remarks
Bulk 41st Div> m:°sc A/A, Engr units.
Bulk of 20th Div. Misc A/A & base trps \u2666
Bulk of 51st Div. Poss 6th S. Seas Deti Misc troops, 18th Army Hq at Boiken,
Poss el 52nd Const Duty Co and u/itrps.
6th South Sea Det and misc troops* Increase in estimated strength based on cumulative intelligence.
Bulk of troops in New Britain believed now concentrated at Rabaul j outposts only to remain in East Central £ew Britain, Corobat forces include el 17th Div, 3Sth Div, 65th Brig, misc 6NLP.
Hq Bth Comb SNIP| 81st Defense Group; Det;Yokosuka 5 & 7
12th Pioneers,SLF'si Ist Ind Mixed Regt (~ Bn), tank unit, & poss el 38th Div.
Remnants of the following: el 51st Tpt Regt; Bn of Ist Ind Mixed Regt; el 38th Div; misc troops.
Sub-total 60,500 60,100
|j3J|!ai;, 1944 30 Apr .1944/ r*lr*1 Remarks
SOLOMONS?
* Short land s-Ballale 2,000 El 23rd Inf, 4th Garrison Unit and mj.sc
troops. Possibly evacuating.
Bougainville Southern Sector 12,000
(South of line Empress Augusta-Toe imonapu Bays)
10,500 6th Div (bulk), el 17th Div, Engr, A/A, Arty & L of C trcops, plus SNLP's.
Eastern Sector (East coast) 3,000 Poss remaining el 45th
Inf & misc troops.
Northern Sector (Bu&a Passage Area) 4,000 Det Sasebo 6, A/A, FA
& Naval troops.
Choiseul 500 Remnants from Ncr-Georgia area evacuating.
Sub-total
AGGREGATE
* Mo change in strength estimates.
I,": .. v '.-'4
- -2
