Japan Enemy Trends April 45

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G E N E R A L H E A D Q U A R T E R S

S O U T H W E S T P A C I F I C A R E A

MILITARY INTELLIGENCE SECTION GENERAL

STAFF

P E R IO D I C S U M M A R Y

OF

E N E M Y T R E N D S

CONTENTS

I

GROUND:

A * Northeast Sector

Par,

1

~o~ainville

Par,

2

New Britain

Par. 3 Eastern New Guinea

B. Philippines



enq

nn r

kLLl,iSSBiE

From Da ily Summary No. 1205 5/6 Apr 194.5

To Daily Summary No,

1111

19/20 Apr 191.6

I GROUND:

A

Northeast Sector:

1

BOUGA-IiLriiILZE: Stubborn re s i s tance con tinu ed t o be ol 'fered along

the road t o Buin.

Although two regiments of the 6t h Division, alrea dy

i~uch educed, have been large lyd im ina ted i n recent counterat tacks , the

enemy

w i l l

probably stub born ly o2pose our approach t o t he Kongorai River,

In nor th Bougainvi lle re la t i ve ly heavy- %se of a r t i l l e r y by both s id es

has character ized

the

igh t ing .

There are indications that the enerny

inte nds t o stand a t Pora-Pora tr ac k junction and thus deny our for ce si

access t o the v i t a l overland t ra ck t o Ruri Bay.

2

N l 3Y BRITAIN:

I n th e ' ride Bay area All ie d pa tr ol s ea s t of th e

Bulis River toward Jammer Bay have encountered sporadic enemy activity

while p at ro ls along the west co ast t o S ai PLver mouth re po rt an absence

of opposition.

3.

EASTEPJ NDU

GU I N E A :

Although the enemy continues t o r e s i s t t he

c oa s t a l advance on I<iewal:, t h e most st renuous f i gh t i n g has occu rred s out h

of Dagua, r.nd west of Ihp r ik where

o u r

tzdvinces threaten the main source

of t h e e n e ~ ~ y f sood supply.

The Boikcn area appears t o lend i t s e l f t o

defense, but re cen t photos af 'the co~.sta.larea t o beyond 71Tewskdisc lose



Ground Contfd

r y 32 Contfd

by a r t i l le ry , were in di ca t i ~r e f the enemyts in te nt t o ef fe ct counter-

offensive measures,

A t

th e c los e of the pcriod, th e enemy s primary

defenses collapsed and were overrun; heavy c a s ~ m l t i e swere sustained

as the incomplete tabu lat ion approached 5,000 ca su al t i es or more tha n half

of h i s tak a1 e f f e c ti v e troo ps. Remaining enemy strengti?, now being dri ven

fur ther inland,

s t i l l

re ta in s some defensive cap ab il i t i es , however the

backbone of t he Cebu def ense has been broken.

On Negros, off eri ng only nominal resistan ce, th e enemy fo rf ei te d

the e nt ir e northwestern p la in ar ea and has committed himself t o a ty pi ca l

engagement on i n t e r i o r t e r r a in featu res . Probing of enemy co nt ro ll ed

t e r r a i n i n th e no rth ern highlands dzveloped a N-S defense zone approxima tely

5

miles long, with Negritos f?rming roughly the cen ter poin t i n the l i ne .

On Negros t he enerny ha s succeeded i n evading combat on maneuverable t e r r a i n

and has retai ned the bull; of hi s s t rength f o r a protrac ted defense i n the

rugged northern inter ior .

On

Ap ri l, our tr oo ps made an unopposed land in g on Bohol and

subsequently developed only scat ter ed con tacts a s the or i gin al posi t ions

were quicltly expanded,

The sma ll enemy ga rr is on possesses only th e

cap abi l i t y of inlz.nd defense i n conjunction with smal l scale l oca l iz ed

harassment of our e st abl is hed po si ti on s. Iiiopping up of enemy remnants

continued without s ig ni fi ca nt inciderl t on the othe r Visayan Isl and s and

the Palawan area, The indi vidu al and col lec t iv e is ol at io n of a l l the

Central Phil ippines Islands precludes any enemy action but that of

is ol at ed and hopeless defense i n presen t ly occupied areas .

6. LUZON: With th e exceptio n of sev er al is o l a t e d pockets, organized

res ist an ce i n southern and southeastern Luzon

i s

nearing an end.

Xast of



A i r - Contfd

Periodic S w m y 32 - Conttd

is ol at ed rai ds aga ins t our ins ta ll at io ns i n Luzon by Formosa-based ai r-

c r a f t i s s t ead i l y diminishing, he i s s t i l l c apable of f l ~y i n g n n ig h t

ra ide rs i n sn al l numbers a t in frequent in ter val s ,

-b.

BORNEO, NEI

A N D ADJACENT ARMS: As i n the Philippines, enemy

a i r a c t i v i t y

in

the Borneo

- NEI

areas continues on a limited scale,

con-

fined primari ly t o 4-6 p lm e in terc eptio ns of our search and small. str ilre

missions i n th e North and Western po rt io ns of Borneo, and i n th e Balikpapan

are a. Sone a i r f i e l d s i n Halmahera and th e Celebes-Ceram a re a are being

kept i n a s ta te of l imi ted se rv iceabi l i ty , thus - fa ci l i ta t ing any pro jected

harassing at ta ck s ag ain st our ITes te rn Mew Guinea and ad acent bases,

c. FORIIIOSA: Minor unaggressive interceptions have been encountered

but th e main defenses have been confine2 pri ma rily t o

AA

f i r e . The bulk

of th e enemy a i r a c t i v i t y i n Formosa probably has been di re ct ed a gai nst

our forces operating

5~x

an around Okinawa.

d. C H I N A , I N D O C H I N A , '?YE SOUTFI C H I N A SEAS: Fi gh te r cover f o r

coast-wise shipping continues as t he main enemy a i r a c ti v i ty i n th i s area.

There a re some in di ca ti on s t h a t a port ion of th e enerny a i r operations against'

our fo rce s i n th e g ener al Okina~vaarea are staged from Eastern China coastal

a i r f i e l d s ,

e.

ITAIGEI

SHOTOS

-

KYUSHU: The gr ea te r por ti on of th e ope ratio ns

of the enemy ai r force s has been directed agai nst All ied operat ions i n the

Nansei Shotos,

and i n an a e r i a l defense aga ins t ca rr ie r att ack s on Kyushu.

I n and about Okinawa, th e at ta cks have been tile hea vie st, and th e pro por tion

of su ic id e cras hes remains high.

Me~ritypesof su ic ide a i rc ra f t , both je t

pro pel led pi lo te d c r a f t and roc ket bombs ha.ve been employed i n ad di ti on

to the conventional type ai r c r a f t i n these suic ide crashes. During tihe

period Apri l - 20 April, th e enemy has l o s t over 1,800 a i r c r a f t i n an



A i r

-

Contrd

Summary 32 - Contrd

r R E C B T I T ~ T I O N AIR :

Par.

7

-

A IR

OPER4TIONS:

Offensive eneny a i r a ct io n i n SIWA

continues almost non-existent; heavy

a i r at tac ks i n i 'ansei Shotos continued

despite extremely heavy losses.

Par,

8

-

A I R

STRENGTH

:

The enemy has maintained the same

r e l a t i v e l e v e l of

ir

s t rength i n STurPA

and the Formosa

-

Ryukyu areas.

I11

PJAVY:

10. FLEET UNITS:: The Japanese f l e e t made what app ears t o have been

an abort ive s o r t i e aimed a t our fo rce s i n the Okinawa area, ulrhich turned

out t o be a complete fia sc o fo r th e enemy. Late i n th e evening of 6 Apri l

and the morning of

7

Apr il, tln;o enerny forc es were si gh te d i n t h e waters

e a s t of Kyushu and west of Southern Kyushu, Inasmuch a s the fo rce

app are ntly turned vrest and then nort h a f t e r rounding Kyushu, th er e

i s

the

remoted po s s ib i l it y th a t mining of Shirnonoseki S t r a i t s caused th e enemy

t o use t h e c ir cu it ou s rou te tirirough Eungo Channel i n an attempt t o escape

'Lo s a f e r wate rs tha n th e I nland Sea,

On th e 7th, 100 n i l e s -rvest of' th e South t i p of K~yushu a fo rc e of

1BB,

YAEJNTO,

1

CL, kCAX9, 1

CL or large

DD

and

7

or 8 DDs were atta cke d

by 380 planes of t he 5t h Fle et, After th e afttac k a l l tha t remained was

CL or poss ib ly

1

a r g e

DD

and D ~ S , a t l e a s t

2

of which were badly

damged. These rgmnants r e t i r e d t o th e Empire, po ss ib ly t o Sasebo, where

on 11Apr il DDs were photographed,

3

of them i n drydock.

Recent photographs

by

B-29s show important f l e e t uni ts i n the



Navy Cont d Summry

32

Contrd

Marinduque Is la nd as pos it iv e. 1iYith

U-

contacts i n the Phi l ippines during

the previous period

t

i s appar ent th a t anti-submarine measures and the

captu re of th e enemyls base a t Cebu City ar e showing re su lt s.

The Japanese appear t o be concentrating t h e i r submarine ef fo rt s

n th e Okina~~iva re a with 24 cont ac ts rep or ted a t Okinawa and ad jac en t

waters. (s ee Encl No 3).

12,

MERCJUNT

SHIPPING: Despite heavy a t t r i t i o n , the enemy has con-

t inued hi s rece nt ly accelerated merchant shipping ac t i vi ty dur ing the

pe rio d i n the Makassar Straits-NEI apea.

In ad di ti on t o th e normal move-

ment of smal l coas te rs (many of which have re ce n tl y been repo rte d a s being

troop-laden), se ve ra l well-escorted tank ers and fr ei gh te rs of appre ciable

tonnage have been. observed i n th e I~iakassarS t r a i t s ,

This vi l l ingness -to

r i sk his s izeable coupled ~vi t l i lie pers is te nt small ship t r af f i c

i n

the Java and Florcs Sea, suggests t h a t t h e eneny i s making a desperate

attempt t o salvage v;hatever resources are ava ilab le from h is holdings i n th is

gener al area, rega rdle ss of the shipping ri s k s involved and Lhe los se s

being suffered.

There has been a vi r t ua l cessat ion of a l l s ign if ica nt convoy t r a ff ic

alon g th e Indo-China-Formosa-China Coast sea la ne s, Photos con tinue t o

r e f l e c t

a

considerable m rc ha nt shippin,n.tonnage i n the Singapore area;

however, o w searches f a i l t o disclose

aria

lucr e t iv e t a rg e t s a long the

convoy route, other than an occasional sizeab le vessel , usu ally i n port .

Apparently, th e e ffe ct ive ne ss of our a e r i a l and submarine blockade has

re st r i c t ed present act ivLty to the s taging of s ing le uni ts or sxial l

numbers of

m i i t s

fr on por t t o po rt along th e route, with movenent

confined gen eral ly t o th e hours of darkness.

Sightingsof numerous small

coaster s, junks and sampans in dic at es an increa sing re lia nc e of t h i s



IP

losure 1~0

I.A

9 iodic Summary No. 32

DENSITY OF

ENEMY

GROUND FORCES, NORTHER11 LUZOI J

20 April

1945

1,b.p

Ref. 110.

1 Babuyan Id:

Batan Id 700

Calayan Id

400

Dalipiri Id

700

Camiguin Id

400

Fuga Id

700

Babuyan-Ibahos Id 100

33

000

2 Cagayan

Aparri-Lallo Area 7 000

Abulug

100

Gonzaga 300

Gattaran 3,

100

Alcala 3 0 0

Abra



20 April 1945

Cont d)

Map

Ref. No.

Bataan

I t . idatib 500

Bulucan

IP

Busung

Rizal :

1j[awa

h t, Purro

St . Ines

Sampaloc

Batangas



20 April 1945

(cont cl)

Map

Fief. Nor

8 Negros

IJegritos -Sicaba Fks Area 8,000

Dumaguete 400

8,400

Cebu:

Buhisan

Talainban

Liloan

Bohol 200

Aggregate, Visayas

l-4

100

DEIJSITY

OF

E %j IY

GROUTJ

FORCES,

LHNDANAO ARSA

20 April 1945



To Accompany Encl

No 2

Pe ri odi c Smmary No 32

EXPLANATORY NOTES

1

Elements 55th

IMB

f a i l e d t o oppose i n i t i a l la nd in g,

opposi t ion subsequent ly devdcpe d i n mounta inous

i n t e r i o r .

Enemy repa ants continued i s o la t s d defense of se lec t -

ed t e r r a i n f e a t u r e s i n con junc ti on wit ? f u r t he r

northward withdrawals.

N i l

oppos i t o n t o Malabang-Parang-C otababo land -

ings ; enemy wi thdrawal toward i n t e r i o r po s i t io ns

p r e sages t y p i ca l de fens c o f e s t ab l i s h ed pos i t i ons .

~ i i hh e co l l a ps e o f h i s main de fens ive pos i t i ons

N V

of Cebu Ci t y th e enemy ha s withdrawn i n t o t h e

i n t e r i o r and a long E coas t .

Inef fec tual de laying ac t ion opposed our occupat ion



C E W T R A L C H I N A

M A R I A N A S .

0

.

.

UK

0

I

C A R O L I N E I S L A N D S

. 0

Q

m

M A R S H A L L

0

I S L A N D S



:

+

.

G EN ER A L H EA D Q U A R TER S

SOUTHW EST PACIFIC ARE A

MILITARY INTELLIGENCE SECTION, G E N E R A L STAFF

1-111: DAILY SUMMARY OF ENEMY INTELLIGENCE

IV: G-2 ESTIMATE OF T H E ENEMY SITUATION

V : MISCELLANEOUS INFORMATION

No

D TE

1121. 29/30 - p r 1916

SOLO:.~O;TS

1.2 ou~ ni i iv i l le : 22

L2r: 3 1

ainbush of

udm

strenzth encountered along 2uri-

1

a t a i?, i; Tol;inotu; un :n nb r en loc a ted

7 mi S-.

t o

3

r~ I3 Pora Pora.

3 r

1 4 ~ 1

GU1XZ.A:

2.Aitape-\iev1al<: 28 np r Area alo ng t r a c k 1-3/L mi S Boiken cle are d; :nortar

f i r e rcvd Kawain i t ; area 2 xi t o 2 s mi X;'JZ IIapri l: c lea r; p at ro l clash es

appror, 2

xi

NX3:r Lake Imbi.

131~ILIPl'IiJES

3.i:Endanao: a ) North Coast: 27/28 Apr: f l r i g a o province c l e a r of en; gue rr



dE,ZTMZTY

IS:

1.iJanus

:

?Jig>t 28/29 Apr: (Yurt11 ~ p t ) 2 en torpedo a/c attacked dry-dooks;

no dac,~ o sh ip s 8. no personnel cas; planes at tacked f r

'?

too l 0 7 i fo r r ada r

BORI\JZO:

2.7.1 Coast: 28

+r: 2

en Fs obsvd viar?ing up on sod s t r i p

3

of Pontianlk (a-211

JAVl?

3.Ge3cral: a ) Fhotos 21 Apr : Soereba ja,

7

TE

a/c,

3

Tpts

. 9 Ps;

lbrokrem-

bancan i;aval

A i r

Sta t ion ,

1

4~

/B,

6

F/PS.

b) Fhotos 16 Kpr: Pcral: a/d,

15

~ p c ~ r t i o n a l/c ( i nc l 3 Tpts,

4

T2

B s

8

FS); Conajoran a/d, 30 Fs

t:

TT: 3s

l'::ILI;3JI:: t;s

:

4

A,zndanao 29

-<;r

Fadnda airfield (Davao

)

capturzd

by

~ r c ?orccs.

- - .

.

U.YA :

5. o i n p q o r e

:

2

r :

Single a;grcssivc i~ ul t i -c ns ineen a/c encountcrod by

B-24

search plane 125

ni

iT Sin ~a- por e; 2231.

'j'xaTCE

I'JJO

C,iii.J]~

6.Saigon: 29 i"pr:

N i l

i n t c ~ t n 6

30s

swicp Caigon a/&; parked 2/c (poss

dwfzlges) on aau ;Jot on ly en sigl itin g; fr ie n d l y pla nes picked up b ~ r n

ra dm -trac :ed. i n t o S a i ~ o n j oon.

CBIZJLL

:

7,Amoy: 29 Lpr : 7 e n

Ijs

obsvd on ~Lqoya i r f i e l d ,

8.S~;nghai: i;ii;?.t 23/29

A p : AA

sho t dov ,~

1

of

4

blind Es

f r shore

h destroyer

~ s c o r t n r i v ~ r ;

1

plnnc holcd 18

9.Gcncral: 28 i.pr

:

En a/c dcst

bj

114th

ili

uiacl; 19-25 =ipr:

;

nter acc

A3

tiiiles e t on fire

Dcst 1 prob 0,

darn 4.



6.Toshicn: 20 I L;~: Stra icd 6 junks, 2 nbandoncd,

iS~i

7.Keclung: a ) 28 :\pi": io sp it al sh ip , 10

l

5 5 E of I i iru~ r s i?,ix'r.

bl) 9

p

r c i ~ h t c r 3 00 /10 00 ~) , r e i 3 t c r ( 15 0/ 30 0~ ), 1 0

ni

ES3

Kiru~

bor.~bod traled; 1 e2 t ~ r e c kc d n b~ nc h , burnin; fu r ious ly .

c ) 29 Lpr:

10-torkozt or not or to rpedo boat s tr axcd , 20

m i SY;

Kirun.

~ q ? ~ ; c ~2;j o CS1ijiL

8 .S~~igonrea: 29 Lpr: freigl itcr (7 00 0/ 10 ,~ ~i 0~ )n Kong l a i

R;

1 burning

freighter-Iqt

(2 /4 50 0~ ) n 502 Fa,e

R ,

IL;i, :

i Id.

l i l i

.

g,:culin

Gay:

29 LL;7r: B:1'i)t)ty.

lO.SI~angh;i Area: 28 '~pr: 1 poss dtstroycr escort, 6 u/ i vs l s .

11.,Svatovi:

a )

L

k g

schooners, 12 l r g

junks

s t rafzd ; 2 junlcs strzfad, 10

n i

of: 5kra.tuw. b ) 27 Lpy: re ig ht er s (type doub tfu l); 2 bomb bi t s , pas-

s ib l e ,

12.i.hcao: 29 f ~ p : ~ : l r g

j d ; s

4.0

n i

s, l e f t sinking; 2 l r g j lml;s, 45

xi

E

l e f t s in li ing

13*ic:1oJT: 2 j : roi ghto rs, 6 gunboats, 3 destroyers, 2 ste.; lhoats,

hospi tal s i l ip ,

1i;IJSEI

~ O T O

14.0kinawc: a ) 28

q r :

Surfme uiii ts destroyed

8

suicide boats,

b )

28

Apr:

i,Kdget sub pens disco-mrcd, containing 6 vmcckc.d SUSS,

:

1 r e :

28

r : cttles hip (a ru nn ) now ilcs f l i gh t deck on stm n;

converted b n t t l ~ s h i p o longer a t i?pr 13 posn

L

i s un loca td .

c a r r i o r

(Unryo class) at l/Iutsuho Jilz., caiaouflaged.

i g h t cru is cr (ilgano c&nss)

prcviov.sly unloca tcd noT;f a t Ya

Shin._.

e s c or t c a r r i e r ( ~ a i : , o l a s s )

formerly s t i Ji s: iinani ~ h i n a '13 lpr) now n t K u ~ ~ c .

1 8

dostroyrrs a t Kurc

and Ya Shim; al so a t Kurc: 18 subs i n r - d c ) 3 old

? i v ~

ru isers ,



Swm ry of the En S m r y

1 1 2 1

Contid

b, Ac ti vi ti es i n Rear Areas:

-

Java: 26 operational en a/c photo d

2 1

Iipr,

Saigon:

~ i i

ntcptn 1~-38s

China: Inten, acc it , i tShanghai;

7

en

Bs

a t b oy ,

Oicinam: 104 en a/c des t

by

TF 51; 3 by

TI 5 ;

t o t a l 5 en

d

dcst

night 27/28 3pr,

Kyushu: 443 opera tive cbt a/c on 0 a/ds (28 Lpr) ; s l opposn t o 1 8

B-29s bonbing

6

a/&.

Honshu: 367 operat ivc cb t a/c on

2

Nagoya aids;

157

a/c on 3 Tokyo a/ds.

Truk : 5

en a/c

obsud.

c. Identifications:

1s t

Bn, 74th Inf (30th ~ i v ) ; ocuqents taken from

&ad en.ehy off ice;,

fl

of i:abacan. 732nd Naval

Air

Unit;

documents

capt-

ured vi ci ni ty Digos,

d, Vieather: Formosa air strikes cancelled.

-

2. Conclusionsr

a Enemy Capabilities

Oocrations on J&indwao :

A

(1) Def ense of Uindanao

(a)

Defense of the Davao lipproaches

.

(b)

Defense of the Central Idndanao Approaches,

Operations on Luxon:

(2) Defense

of

the Ipo Area,

Operations None the China Coast:

(3) Increase of Small Craft Traffic.

Operr?tions i n the Empire:

(4) Disposition of Fleet Units,

5 ) Fotcntiltl Air Operations,



Enerily Capabilit ies Co

r y 1121 Conttd

t he S i lac t r a i l , A s avo been observed

toward Iibnogok and L i

cnenyrs 2osition on

the i ndic ated com.nding t e r ra i n f ea tu r e s would give him an clement of co ntr ol

over the high~vay

nd

would a ls o se rve as a f i n a l d efense area comparzble t o

those alrea dy encountered i n other Philippine Island operations.

11%present

i t

appcnrs t h a t t hi s area m y develop into one, i f not th e m j o r eneny defense

zone f or his f i na l stand n north-centr3.1 I.&ndnnaor

(Sce Ehclosure oe 1 ).

Opcrations on Luzon:

( 2 ) Defense ,of the Ipo k e a : Recent in fo rm ti on concerning troops

located i n the Ipo arca was obtaincd from

a

EJ capturod 10,000 yards north-

wcs

t

of :Jontalban, According to him, the ICal-$ashi:% IIeidan (Group) i s coi~poscd

of LITQ miding rcginents (one of which i s the provisional Tonono force con-

s is ti n g of thre e bntt nli ons ) and two combat ba tta lio ns .

The infomation that

tl irec b at ta l ions c or-lpos th e Torilono for ce confiras a previously captured

sketch

m p

t h a t disclosed thr ee b at ta li on CPs i n i t s are:.

The 3-i e s t i m t c d

the stre ngth of t he Tonono force a t

1,400,

Ilssudng the second raiding

reginent o be apgroxiclately thc sm e size, and the two conbat b ~ t t ~ l i o n sf

~v er zg e e la ti ve s-br~ngth , he e nt ir e group would nd;e up

a

conparable strcngth

t o the t o t a l strcnzt h indi cat ed i n a rece ntly captured document (about

f iv

t o

s i x bat ta l ions) to be i n the area .

O u r pat rols operating i n the a rea have

rc2orted t h a i a l t l i o~~ghe has vie11 prepared defcilsive posi tions, th e ene~iy

dous not occupy n l l of then all. tllc ti :^^, an inbiczt ion t l u t t he f ive to s ix

bat tal ion st rci igth est i nat e m y be f a ir l y close. These reports

would

a l so

suggest

t b t

tho present forces i n thc Ipo area w e

n

siceleton force to

const ruct, i n , u v e and protcct thc defcnses and do not conprise the entire

fighting force the cnerhlymy eventua lly onpl.oy t o defcnd th e se ct or (See

Sxnnary

1UO



E n c : ~ a?c'-bili tics Cont d

an Ilcrrlaphrodite inasf~uchs the IS

and EYUGr

th or oq hk i s s t i s f ac tc ry i n act ivc erit.agc. zcnts

A Prisoilcr cf ar interroga-

tion ([:radcd only

C - 3

le ad s t o tllc be li ef th2.t p ri o r t o :?o?.c-zbcr 19& an ti -

a i r -cra f t ins tz l ln t io l i s on

t1 LC

l i ~ h t eck of the

X C V - D B s

have rcndereci then

unsuita ble fo r lau:ic iing md neccssitat in; t lic ca t q u l t i n g of the planes,

The ACXiO c lass CL ~;hosc~ h ~ r e a b o u t s?s bccn udcns~ ,n s nosr

Irilo~m o 13c at Yc? Shi:la i n t he Iyo Sca, and the CTJZ ILIIPO

previously

a t

i;ishino,.ii Shi.,za i s nOiJ a t I ~ L E ~ ,

It

i s of i n t e r c s t t o le zv rn t l i a t o f

18 D D s

a t Kure and

Pa.

Shi.:a.

15

are or" the -BTSU class.

This cl as s of destroyer i s pr kla r i l y an cscort

vessel ancl not a f l e e t clestroycr l i k e tlle ena.ly's TET,IITSUI;I :.FUBUi<Ic lass

destroyers

vri th their

8-5

and

6-51' ivbin ba tt e ry rc sp cc tiv el y.

I

Tllc ;lTSU c ln ss i s 3201 330' in len-th, and cn rr ic s 3-5~/1~0

cal iber d u d purpcsc guns,

Due t o -t; ie f a c t t at t h i s c les s llas no co::pli-

ca tcd d c s i ~ l i r equip:mn'c problc-IS, t he encrq- i s esti;etcd t o have corii~loted

ap-21-uxirntelg 27 ui1i. t~ n 19L4, a nxib er o i wkich

11a.m

alr ead y been

sun :.

The si$l ting or" th cs c lBTSU class des t royers fu r ther subs ton t ia tcs

~fi1a.t

has

previously b a n suspected thlct

cf

the cs t b a t e d 25-30 dcstroyars i n the B.lpire

only a l i s ~ i t e d wzbcr ar c capaSle

cf

el ' fect ivc use in a f l e e t a ct io n,

fllt:lou$l t;icsc re po rt s slzovr ~- lc vc ,~ cn tf the ISE,

it

docs not

def ini te ly xean t ha t slie

i s

now ready f o r

i

xedia tc ac t ion nor the

&lRT?:I1

with i t s c on v c rt ~ d l i ~ h t eck, and no si ~l li fi ca iz t ncrca sc

i l l

the cnc?;~ s

ca.~m'bil i t ies s indicatcd,

5 Po ten t i a l A i r Operations: On 20 -4pril a t o t : ~ lof 443 operntive

conbat a i r c r a i t wcrc photogrnphcd by 9-29s or, 8 C~yushu airdro-?cs.

The day

before 520 operative corl'uat nircraft wcrc phctographcd on

3

drc--1~s.

Ihoto-

graphs of 21/22 April -- tho : lost c o q l c t a covcrago y ~ tttair1c:cj--sbn7red 776



Enexy Ca pa bi li ti es Cont d 21 Conttd

Due t o operat ing f cct o r s unknown th e eneny o t been ab le

t o make cqcrcnt use of larg e n u ~ b e r s f these operative air cr zf t.

Inasmuch,

however, as tllere i s no assurance tln3.t s om or a11 of such di f f i c u l ti e s m y

not be overcome, th ese lar ge nmb ers of a ir c r a f t, s-tanding.8practicz11y

un-

nolcsted, co nst it ut e a foruidable th re at again st the succcss of our Okinam

and perhaps subsequent operations*

b. Relative Pro bab ilit ies:

-

1 Defense of LBndanao:

The

t ransfe r of supplies and ea r l ie r gu er r i l la

reports of hoop shifts to the Talono River area,

he^

coupled with the

presently encountered dclayilig action along the Davao G u l f coast , substantiates

the alre ady indi cate d eneay in te nt io n of defending initi all- J before Davao and

s ~ ~ bs e que n t lyn the in te r io r .

I n north- cen tr al lilindcnao

i t

appears that

th e 1,ialaybala.y ar ea nay develop int o onc, i f not th e r.xi joy enemy def cnse zone

f o r h i s

f

rlal stand,

2 ) Defense of th e Ipo Area:

It

i s possible the two raiding regi~lents

and two comb cd y a l i to be i n the Ipo area mkc up

nost of the s t r en f th i n t he area a t the present, v~hicli previously captured

docx~ent nd ica ted to bc a t about f i v e t o

s x

ba tta lio ns, Althou'zh th e i r

, kc up i s previs ional,

tlie

enexy hns t he p o ten t ia l means t o cfZec-t; a stubborn

defense i n th e yuggcd Ipo te rr ain ,

he

c ~ w r c n t a ss ive a t t i t ud e i s not con-

strued to indLccl.i;c a vrcakly I~cld r evacuted sector,

(3) Increase of S m l l Craft ,Traff ic y

a

la rg e sc al e exploynent

junks and othcr

s1lalL

craft, which i s new il2parent along the China coast,

the cneny can continue t o supply liis garriso ns do n g tke China coas t and i n

Formosa

4)Dispos:i.tiin of Fl ee t Units: m i l e new photogrnpliic interp reta Jcion

re po rt s in di ca te sonc novelllent of f l e e t un it s vdthin t he Einpirc, th e condition



1

9

Apr: Against only s ca t t e red ei-iemy re si star lcc,

advance elements 19th f i ~ f eached a

point

2 :?liles MN

Santa Cruz; lfgli'cly

dc-

fended road bloc < engaged 1,000 yds iJE

of

~'atulangon.

2

28

Apr

Four

;?ossiblc

cnemy

barges obscrved by

PTs moving north 1,000 y& o

mta

Cruz

3 9

Apr

Guerrillas report TaZicud Id, S. ?S s m l

Id, c le a r of Jays.

Undated captu red encmy doc~il cnt iidi-

cates that sui3pl5.e~a r c

being

moved in-

land from Davao.



~ l ~ p r ai . ac L

b

a-ic1 No 2

L

ai~~Yumn.1;1rj10. 1121

On Apr 9:

1

Defcnscs a t Xapatalan ovsrrun

y our

forces

only d n o r contacts made

by

pa t ro l s

mov-

ing up Infanta Road.

2.

Civi l i an

roin v i c b

of lbsungit

Roclc re

ports Japs

in

arca moving toward Santa

Ines i n groups of about 20.

3

A l l peaks

on Ilt P ~ ~ c ~ ~ r a g a n3,000

yds ESE

of j,lontalban) were clearcd

of $he

enemy

by

the

2nd Bn, 145th Inf;

the f e w

Japs

renaining S i

of i;&ri ;ina R a r e now sca tt er -

ed.

4

i

report indicates two Raiding Regts,

Hanabusa

nd

Tomono (strength

o f

l a t t e r ,




S O U T H W E S T P A C IF I C A R E A

MILITARY INTELLIGENCE SECTION GENERAL

STAFF

1-111: DAILY SUMMARY

OF

E N E M Y 1 N T E L L I G E P ; I C E

I V :

G-2

E S T I M A T E OF T H E E N E M Y S I T U A T IO N

V : M I S C E L L A N E O U S I N F O R M A T IO N

No DATE

1120 28/29 Apr 194.5

SOLOi lOiJS

:

1.Bougainville:

27

Apr:

h

W n str en gt h contacte d 4000 yds SE Tokinotu; Japs

withdrew f r posns 4000 yds SE Korinu; defens ive posns being cons tru cte d

2000 3~dsSSV Sinani ; Japs lo cate d 2.500 yds

Icapana,

IEfI GLTMEA:

2 .Aitape-TTe~valc: 27 Apr : Posns encountered 3200 yds E '7arangam Villages and

2500 yds E ;iora; Hawain (3 ni

E

Boilten) captd; mortar f i r e and anti-person-

nel mines encountered 1500 yds

Boiken.

PHILIPPINZS:



ADMIRALTIES:

1,Manus

:

28 Apr

:

Lone en a/c bombed ct-;-docks, causing dam; 23001.

C%rnB%S

2.Ynnado Area: 27 Apr: 1poss se r v a/c on SE s ide Langoan a/d,

ROmo

3.K~d-at 28 Apr : 2 FS r 1B des t or prob des t (garble

1

on Kudat a/d by P-38s;

clever patching of

r

'way made i t appear u/s from 4000 1

4,Natoena Is: 27 Apr:

1

appar s e rv Tpt on Boelan

I d

s t r a f e d dam by P-38s.

5,Kuching Area 27 kpr Poss r %ay sighted by

P Y

rift 5nland on S side of

Igan River.

PHILIPPIMES

6,Palavran: 28 Apr 2 en a/c approaching f r dep ar tin g t o SI T draped ant i -

personnel bombs on s t r i p area, n i l dam 02331.

7.Luzon: a ) 26 Apr: 2 Fs on Tuguegarao a/d des t by 15 P-51s.

b) Zight 26/27

Apr: 3 Fs mnadz 1 n e f f pa ss a t

2

~ - 2 4 s , 50 m i N of Laoag.

FOR1 OSA

:

8.3.

Formosa: Night 27/28 Apr: 1F i ne f f in t c p t d E-24s over Toshien,

9.N.

Formosa: Might 26/27 Apr:

1

night F in ef f in tc pt d 2 B-24s over

N

end of

Forinosa

FRETLTCI- IEJDO

CHINA

10.Saigon: a ) 20 Apr: 1

F

in tc pt d B-25s attaclcing Saigon shipping; 1B-25

l o s t t o i n t e r ce p t or and

2

t o

AA

b) 26 Apr: 2

Fs

ine ff in tc pt d 2b of

46

B-24s bombing Saigon t g t s ; 12 a/c ho le d by AA

CHIRA

;

11.Foochovi: 211 Apr: 1 B shot down by Navy search a/c 90

m i E

of Foochovi; Tpt

a/c chased but escaped; 0825-08201.



Mz~vy

- Cont'd Summary1120

-

Cont Id

burning; Ir,m vs ls , group of lugger s

so

craft, a dredge prob damaged.

1iA11dfu4

11.Y:iLin

Ba-y: a )

20 Apr: an-boat,

1

f re igh ter - tp t (3 /1200~) ,

3

f r e i g h t e r s

(150/ 300~ ), re ig ht er 300/1000 ). b)

28

it2r rei ght er- tpt (2/b500~)

anchored; re ig ht er (300/700~) i n inner i lbr.

reighter-tpt (700/1300~);

gun-boat ent eri ng inne r hbr,

CI3IIlA COAST :

12.Foochovr: 28 Apr: poss de st ro ye r- es co rt 60

r i S Y ~ ;

many jwJ:s same vic in .

13 Ehcao 28 Apr : ugger s e t a f i r e , 80 m i

ls-I.

14.Ca:lton: a) 28 Apr : tJtrafed two r iv e r boats, 1 beacbad; both burning 10

m

SE.

b)

25 Apr: Strafed

3

r i v e r boa ts , r g f l o a t b g d er ri ck ; b oa ts l e f t

burning de rr ic k out of comnission. c )

20

Apr: r g u/ i

sh ip

momting

derrick danaged,

lS.shanghai:

20

Apr: re ig ht er -t pt (700/1300~) sunk

by

d i r e c t h i t .

JAPA ?

:

16.Kurc Area: 28 Apr Lrg f l e e t cons is t ing ca r r i e r , ba t t l e sh ip o the r ship-

ping, Lanoi Sea.

CEIfTPdIL PACIFIC:

l7.I~ro Jima: 20 ilpr: sub contacted 300 mi 31.

1

Sumary of the Enemy Situat ion:

a. Ac ti vi ti es i n Fonrard Areas :

ITorthern Ph-ilippines:

1,uzon LOO enemy con ta cte d 3 miles IJE of Santol Bay &ile opposi t ion

c o n t i n ~ ~ e dicinity of Carnalig.

S of La~una e Bay, st ro ng opposi tio n met

],It

i;fataasna Eundoc; is ol at ec l str orig po in ts rernain 2-3 mi les SSW dlaminos



Conclusions.

a. Ene4;1y Capab i l i t i es :

-

Operations on 2findanao:

1

Deieilse of ;Iindanao.

a )

i

hdra- rial

i n Soutiler:: .iIindanao

.

b) Uef

erne

of C en tr al .Aiidanao Approaches.

Operations on Luzon

:

2 )

Delaying Actions 2Jorth and

-hs t

of Baguio.

Opra t i ons i n t he Sulu Sea Area :

3) A i r ilarass'qent of Palawan.

Cr,eraJ6ions on Liiiidanao

:

1

Defense of liiindanao

:

a ) Sjithdrawal in Southern i.Kndanao

:

The nominal enemy resistance

i n t he Dir:os a r ea was ra -2i dly broken and on

28

Apr i l the

34t n

Infan try reached

t h e Davao Gulf coast o c ~ ~ ~ ~ i ~ ~n a r ea

4 dies

len gth fr o n Digos t o Padada.

By

08301,

9

L41sril advance elements of th e 1 9t h In fa n tr y s ei ze d Sa.nta Cruz on

Davao Gulf, 24 miles sou tb of Davao City, ag ai ns t only l i g h t contacts ; abandon-

cd cneny coast defense and A A guns were found i n t a c t , bu t booby trapp ed. To

date, t h e ~ n l y re a i n vSiiich a p o si ti ve enemy re ac ti on has been observed

i s

Sareilgani3ay.

In view of the th re at of being is ol at ed by our east~farcl r ive

fr o n Cotabato t o Davao Gulf an attempt t o execute a northward ~sithdrawz1. as t c

be ex--2cted.

A

seco:?d repo rt from gt? crr i l la sources of th i s tre nd (See Daily

Summary

110. 3.117) re ve al s t h a t an esticia'ted 1,000 eneny reccn-tly noved f ro n

Sarangani to :~ard I:lzlall;lag, 6 iniles south of i'adada.

Since the 167th Independ-

en t Inf ant ry Za tta l io n has b?e;l indi.cc?.ted t o be the pr in ci pa l corfibat u n i t i n

the Saranga2i ar:a,

i t

i s r L a ~ ~ i ~ : ~ . : ~ l eo assume that i t inay have beell included

i n

th i s sk i f t . he t l ~e r r no t these t roops succeaded i n c lear ing Pigos pr ior



L of C t o tho East. The sscond fo rc e ma ~ ~ ~ i t l l d r a v ~u r t he r e ~ s t , l s o f igh-ting

de la ying acJcioiis, througll Ailtamok (7,000 yards

E

of ~ a g u i o ) nd Ralatoc (4,500

yds S of Aintamol:, Rear ItoGcn)

an?

eventual ly over the connect ing t rai ls

t o w a r ~ ~ sYigIivray

5,

augmenting either the Villa Verde flank dcfeiises or the

Bale tc Pass-Santa Fe ar ca s.

Thc p o s s i b i l i t y t l i s t t h i s nay bc the enemyls plan

f o r tile scco;id group i s fu r the r

suggested

by

tile

prescnce of a ~ 1 ~ 1 1o r c c i n

the vi c in i ty of Itogcn(:'~?.intaineda l l through the f igh t ing i n fr on t of Baguio,

even thou^ ^

he

v i t l ~ d r e ~ ~ :tren gth fron t he Kcanon 3oad to bo ls te r hi s def cl~ se s

along 1Ii$TT (ny 9 , rho nay now co nt es t our advancz i n t h i s mining c en te r and who

i s

i r

posi t ion t o jo in the lar ger group then i t tvithdrav$s e a s t Irom Antamok.

C iv il ia ns havc s t ~ t c dhey bel ieve the Japs arc cvzcuat ing to

Bayombong on :-~ighvr?y

5

zbout

25

n i l c s

i J

of Santa F'e;

t h i s

i s

a poss ib i l i t y .

In l ig h t o f our rcccn t successes on IIigllyray po ss ib ly forcshado~vinga tolls-pse

i n Lh2t si?ctor, a rapid ~ ~ ~ e ~ ~ d r a v ~ ~ lay '3e ef fe ct ed t o in su rc r mc hi ng Caeayan

Valley, t i~ crc by t rcngthcning exis t ing garr isons f or cv cn tu d dcfcnse of the

IIigl11izy 5 ax-5.:: of '~lrithclrwal.

In th i s ins tance , a fu r th er delaying act ion

ca st froin Baguio ~ o u l d robably not be c zr ri cd out.

In conclusion , i f

as

ind icated by gue rr i l la 2nd c i v i l i zn repor ts,

t h e cnexii has vritildra%n tro op s no rt h or-, IU~l ~v iz y13r d nur tli -enst tovrcrd Top

SF ,

It i s probable t lic f i r s t fo rce t:ill f igh t success ivs delay ing mt ions

i n 'ehc inountcin ~ z . s s c s zstricic t hc ;;i,"In.15ray i n t o tho Cagayan Val ley; whiLc

th e s~ co ii d ith c r continuLs t o dcl2.y our il zn k advancc on hi s iiigh~vay

5 L of

C

or evacuates t o I:i~lnrr~ y i.5.thout fur tkc r s i ~ n i f i c z n t esistance, depending on

hi s a b i l i t y t o l;iai;ltain a unif ied deicnse force i n

t h e

Balete Area.

( S ~ Cn-

closure No. 2 ) .

O,fi~r:~tions n idle Sulu Sca Area:

3)

L i r 5arassizent of Pa1r:'~'ran: I n tn e cn rl y n c r n i n ~ f

28

AprLl, 2 m i



T5 c

i '~ l l c?~ : r i ~ i gL n s

CLi-2

t a ~ i t a t i v s l y ?l cc te d Tron c~ap-L11r,~3dnc:ay docuq1,hnts

and/or

2 2

in - tz r ro~a t io l i s ,

2 s

having :)os si b le si gn if cancc

Jap

I plzns

on

Fifth Coh.n;l ;'ictiLvitPcsli:

lf(&n &<cr 3-7 iss~jeci

y

105 lJ-j.v

?

20 i5To~

LLj17 - ;it:l

113 2.bove hz2.d-

ing,

ir\,cludes k 1 , ~ ollo-vrinz $:.:'~racLs

Fi ft h colu;m ac tiv i-b ies nf tc r >>lzric;ll L~.ndkngs

a )

2ropz.gc?:lda nu s t nlv:zys give

the

inj.:rzssioii

i2s.t

F i l Q i n o s z r e

f u l l y

suiyi,orti l~ us

20 do -t hi s, coli ccal t ro op ' ;novenc:l-Ls 5nd bsc dece2-tion , so th2.t

i?ttacl;s and delnolition loo:;

ss

thougil

they

a r e the cieecls

oi

I;'ili:.:iinos or

guerri l lcts.

b) Psl:; .i' ~ doctune:?ts L o~ lc i n enorily

clear2 v u 5 1 1 bc

c:c2niined f o r t5.e purposc.

of f ind ing Qle i r na:;les, bir-G:plnce, ate. , ~ d i i c h en

be used by t he

Ai:~yf o r

p r o p q e n d ~ nd. a l so brocdcc-s l

.Lo L2 o

eneqr comt ry in an e f f o r t 60 c i i : ~ n i s h

t : i ~ i r

i l. 1 t o

-irC?.gs

a prolonged

~ ~ z r

c )

In

sprcadkzg pro;~agaildz ;~:;lcng t h e Filipino populcl'cion and g u e r r i l l a s

cxccgerztc ths cru cl ' tie s of kxerLcc?r-~ ol di cr s t o ~ m r d

hc

Fi l ip inos ,

S t a t e

t h a t t k a c r u e 1 . t ~of

L ke

iimcrlcen Ar:ny to-mrds

tile

It"i1i;lsino.s i s c e r t a i n 0

- -

cor,tinxez

ij4?Jcc

en:>;n

~ i z r cf

the

l.:in&~oss of

the

J a ~ ~ a n e s ari~y. :@Ace

hen

a7prarc of tl?c reverses suffered by the J~flericaliArmy; if necessary, re lake t h ~

v i c t o r i e s or" the Jt...panesc 2nd ~ O S S E S

o:? t112

imcri czn s i n ot hc r scctors.tl Fro:;2

AIXATIS tr zn sl et io n of docil'r:lonJ~ apt ~rr cd i c i n i ty

ANTI-?@LO,

LUZON, 17

I.kr

145;

ADiT,nATIS

Tr ans lat ion No 136~ pp

2 4



iParyintelligence

Sectim

eneral Staff



To

i icconpany b c l No. 1

Daily

ummary

No.

1120

MPIJdJi1TORY

NOTES

1 28

k r:

Estimated enemy company contacted during

night

27/28 ~ ~ r

n Sayre Highrag

N

of

Kaba

can by 12Lth In f elements; con tac t main

tained t o

5 1

a t ~vh ich ime th e advance

contiliued t o a po int 3 rniles of Karlar.

2

28

Elements 34th Infantry reached Davao Gulf

9

Apr:

and expanded t o Padada aga in s t only

sc a tt e re d enemy re si st an ce ; advance ele-

ments

29th Infantry pusl-iing N toward Dav,ao

reached

anta

Cruz, 7 miles

B

of Digos

agains t only light contacts; abandoned

enemy coast defense and ; A g a ~ sound

booby-trapped dur ing tli e coursc of advance.



P

E

No. 2

si 112

EXPU~J~LTORY

OTES

On

29

Apr

1

Guerri l la and c i v i l ia n repor ts ind ica te

enemy s Baguio defcnsc fo rces have vsith-

drawn to~vardTrinidad and Top Side; large

troop concentrations re ported i n both

areas.

2.

ur patrols operating from Raguio reco-

noitered t h e sec tor

f o r

a rndius of approx

3000 yds iJ E and

SZ

~ ~ r i t h o u ti g n i f i c a n t

co nt act ; o a r a few s n i p ~ r s nd s t ra g gl er s

l e f t i n City.

3

Only sc at te re d i so la te d groups re~nzin W,

S T

and S of Baguio.

4

Enemy rnaking strong suicidal defenses of




SOUTHWEST PACIFIC AR EA

MILITARY

INTELLIGENCE

SECTION. GENERAL STAFF


IV:

G-2

ESTIMATE

OF T H E

ENEMY SITUATION

V: MISCELLANEOUS INFORMATION

No D TE

SOLOl IOiLTS

1.Bougainv ille : 26 Apr:

En

posn taken near Hiruhiru

2

m i E along Buin ~ d ) ;

a r t y ac ti ve Sora ten area ; 30

en

located Berryls H i l l (Pia terapai a rea) .

NEIV

GUIG3.A:

2 .Aitape-JIieviak: 26 Apr Ne ligm Vil lazes (approx 2000 yds ME Mapri :) cleared;

l r g nbr en Kalabu (5000 ycls SE Fkprik) and a grp a t IJalpa (2000 yds S

1.laprik); several en posns cleared Boiken area.

PHILIPPINES

3.l.ilindanao a ) Cotabato : 25/26 Apr : Pt 1000 yds 1 T Upper Digos (3 m i ' Digos)



A i r Cont d

Cont id

ICE

Area: a) 27 Apr: Sidate a/d l e f t crat ere d u/s

by

6 B-24s

b) 25; Apr:

Gorontalo Tanalnon st ri ps , ser v pr io r t o attack, l e f t crat ered

by

9 B-2Ls,

Sid ate 2/d appeared serv e

3 Kendari Area: 26 Apr

2

SE

n/c,

se rv undet, sig hted a t Tiworo a/d

by

search B-24.

Ic,Uakassar Straits:

25

Apr:

2

Fs intcptd ii d m

1

of

2

B-24s attctclcing ship-

ping vicirr i'.%kassar Town,

BOPJaO

5,Kuching 26 Apr 2 u/s c flgd a/c obsvd on taxiway by

B 25s

attacking a/d

area.

PHILIPPINES:

6,lkindanao:

a )

Night 26/27

Apr:

En fighter-bombers

bombed

Allied

PT

boats

off Davao area ; n i l

dam.

b)

27 Apr:

2 T/B

rp td concealed i n ljiangroves,

vicin Tacabuli

Bay;

adequate supply of torpedoes availa ble (ci vil ian s re-

port) .

FOrn~OSA

7 .N, Formosa 26 Apr Surfaced st ri p, excellen t condition, sighted midrr2y

between Taiholm Taien a/d s; s t r i p

w e l l

crflgd.

fJATiSEI SI-IOTO

8 ,Okinawa: 27 Apr a )

3

of

5

en a/c

desk

i n ra.id on J J l i e d shipping ( a l l 3

by

ships

AA

one a/c attezipted su icid e crash a f t e r being li it )

;

n i l dam

t o shipping; 0.5'301.

b) 8 of aFprox 25 a/c dest during attack against our

naval for ces (1 by N 3 by AA, 4 n suicide crashes; 2 vsls dan, 1 sunk;

2040-23151

JAPAN

9.Honsliu: Photos 23 Apr: Total of 331

a/c

revealed on 6 a/ds (area not

s ta ted) ; 7

Eak~

e t a/c: included on Konoike a/d Tokyo A i r center) .

CENT-UL PACIFIC



Navy Cont d

16.Swatow: a ) 27 Apr: 1 ugger s t ra fed beached, 20 m E.

b) f i r empty.

c ) 27 Apr: 1 ugger st rafed

c

seriously da~ age d 0 m i N W

17.HongKong: a ) 27 Lpr:

1

reighter (300/700~), 1 ugger, 1barge anchored.

b)

27

Apr:

4

riverboats anchored 9-60

m i

.f7.

NfiJSEL SHOT0

:

18.0kina~rra a ) 24 12pr: Sub conta ct 330 m i SE. b) 25 Hpr

4

Sub contacts

saine vicin.

c )

27

Apr: 1 destroyer damaged

by

suicid e boat; a f t engine

room flooded.

J A P U :

1p.Tsushima Strait: 27

Apr:

2 dest royers , c r s ESE, spd 12.

20.3. Yellow Sea: 27 Apr: 2 destroyers,

2

destroyer escorts, 1 r g t ranspor t ,

2

stack-aft vsls,

2

smaller u/i vsls,

5 m

;:

of Saisha

Is,

CENTRAL PACIFIC:

21,Ulithi:

2 5

Apr:

1

sub.

22.Yap:

26

Apr

1

poss sub, 150

m i

11m7

I V G 2 ESTIiiIElTE OF THE ENEkIY SITUATION

1 Smmary of the Enemy Situation:

a.

~ c t i v i t i e s n s or ward Areas

:

-

Northern Philippines

~ i z o n :Resistance continues SE of Camalig (Anbay); no opposition t o

t o landing a t Pasacao and t o secu ring of Naga.

200 enemy contacted

S

Del

Pi lar .

I n

S

Luzon, se ve ra l contacts nade sc at te re d groups Dolores sec tor.

Patrol clashes continued I It S14lepunyo and some stubborn opposi tion was

met

$

IJataansa h d o c .

E of Xinila, enemy a r t i l l e r y was f a i r l y ac tive

vic

j j t

Pacavragan; st ro ng re s is ta nce on idts Solslope.

Inf weapons f i r e re-

ceived 1 3/4 m

N

New Bosoboso.

Baguio secured against neglfgible re-



Enemy Capa bi li ti es Cont

2

Maintenance of

a) IiJegros,

b )

Ccbu.

c

Other Islands.

Operation s i n t he lu'ansei Shotos:

3) Continuccl Small Scale A i r Attacks.

02errticms on 11Lindanao:

1 ) Defense of ?findanno:

a ) Delaying Action >long the Davao iLpproaches : Against s l igh t ly

inc reas ing enerny oppos ition , 24tli In fa nt ry tro ops advanced 4 miles fer ther

e a s t to~rfirardDigos on

27

April. However, there

i s

s t i l l

no positive evidence

of a s ign igi ca nt force deployed t o deny our seiz ar e of th e Sinmilan-Digos Pt

coastc..l area,

A s

previously noted, the absence of f avom ble defensive te rr a ih

2nd already indicated possiSi i i ty of tke e s t z b l i s h e n t

o f

defei isivc l ine

along the Talofio Biver south of Davao, n i l i t a t e s ag ai ns t such a pro t racted

denizl of this imnediate arec fronting Davao Gulf

This i s fur the r supported

by th e continued passive enemy rea cti on i n th e Davao Ci ty are a rvith respec t,

t o our forced entrance i n t o Davao Gulf.

l l e i t e rz t ing the o r ig ina l es t ina te ,

i t i s

antj.cipated that the enemy

w i l l

prosccuto a s t i f fe n in g delay ing act ion

nround Digos and again s t our subsequent. nortl~v~zrc .dvcnces

t

o~ mr d he Davao

per ineter ,

b) Defense of the C en tr al Iiiizdanao t1pproaches : Thc Fnitiation of

a north~vard dvancc.via l;au%e 3 (Sayre Higliway) inet v i r t u a l l y no enemy r e s i s t -

ance on 27

ELencnts of tile

3

s t Division rcr.chcd a point

31 -

n i l e s

no rt h of Mab?.can tarhere Jags r7rcrc 1:5.1lcd i n th e on ly con ta ct d w ing th e

period.

?re-landirrg e s iinates placed app ro~ :im tcl g

8,500-9,500

enemy troops

between Ikbacan and Czgayan, a s t r i d e

t h e

S a p c 1Iigbt;czy road nct,

The bulk of



Enemy Ca pa bi li ti es Cont 119 Cont ld

IJorthern Highlands th er e has been l i t t l e change i n t he fr on t 1Lles; th e enemy

contiiluinf; h i s stubborn defense frail high grotuld.

It

rppcars that the ground

f o r

a

defensc i n t h i s arca bas been ~ ~ ~ c l lelected and developed,

k

seer.ingly

Yeluctance

t o

cnznge i n only a l i i i ~ t c d c t ive defense inf ers

a

hoardii~g

f

s t rength along ~ i t honsiderable dependence being placed on present posi%ions,

a t I ca s t f or the time bcing.

Zxisting -terrain, unless attackcd from the cast,

would permit a defenSe i n considerable depth; t a c t i c ?qhich appears l i k e l y

t o be f o l l o ~ e d .

b) Cebu: Since th e i r unopposed landi ng on th e north -ves t co as t

f th e is lan d, elcrncnts of th e 132nd In fs nt rp have n et only minor

resistance

t o t h e i r eclvc".nce inlan d and pzt ro ll in g nor th along t he coast .

The cr10r :3r i s

app crc ntl y vrithdr?~vsing o

t n e

cas t, perhaps i n an ci;tcmpt t o join troops i n

th e Sogod Bay ,?.sea. Gu er ri ll a forc os hzving cro ssed t he .i_sl,-.nd m c d i n t el y

south of Ccbu City, were

l a s t

reported i n th e vic in it y of Langqron Point.

Ihlring t h e i r advance nor th along th e west coa st, the y have made no contacts,

The 182nd In fa nt ry , advancing no rt h from Cebu Ci ty hhes renched Lil oan

nith

only xinor rcsist?.nce, I:est of the re, g ~ i . e r r i l l a ep or t sca'ctered encrcy

groups i n t h e h i l l s ,

Other elements of t he W n d , a f t c r a shore-to-shore

movc~~cnto Dznao, h;ve inoved no r th al ong t h e c oa s t a s f a r a s Catm7.n i n an

attem pt t o i rit crc cpt enemy ~ovc.ment n t h s v i c i n i t y cjf Sogod Elay,

Thus, i t

i s x ~ ~ p a r e n tha t the reminde r o f the

Cc;b\i

ga rr is on h2.s proi;r?bl.y vacated the

coas-i;zl areas ; th e x t t e q l c d concentration cf remnants inland i n Northern

Cebu for mutual pirotoction

i s

li cely posslbili-by*

c Other P s l a ~ d s 11: o.t;hcr i.cs teri? VisqTan Is la nd s, nopping

~p

peratiorls c o n t i - n e e &cl.os~rc No. 2) .

Operations i n t h e IJansei Shotos:

3 Co nt i~ ue d raall-Scale

iiir

Attacks : ~yp:: ~rent ly n~&ll.ilig

o

con-



r y 1119 Conttd

The f ollo~~sing-.Lc

>p.turcd ene-ny documents

a ~ d / o rR: i n t e r r ~ g c l t i b l e s i gn if i ca n ce ,

V J,USCEL1d7~iEOUSIJFOP2LZTIOTJ

1.

Rmor of

ekY

1nnLentj.ons Ezlete Pass,

PI/,

Su:,

PI&,

l ia son runner

HQ

Scc,

2

Co,

26

Ind

A/T

Bn,

T T ~ O

urrendered

8 hpr 45,

s ai d hc gzincd t h ~oll o~ rin ; in fo rm ti on Yrom 1st Lt, S.d<usai, Bn

Adjt:

a ) "Gen Yaar.sh ita Is 1at::st ;rounc. stra tLg;- -;<as t o mount a huge counter-

offensive i n the Balete Pass some time cround the ?r iddle of ~ ~ p r i l ,f t ~ r.he

ra in y secison liad bc,m and i J l i c d ai Ypo ~re r2s tl ius bccn nullified.

For this

counter-offcr,sivc th e 19 th hi v v~z.s

tc

b,. brought in , a s -;icll 3s the 30th Div,

the 58th

ILB,

and th e -two u / i di vi si on s

reported

t o h2ve lmdecl c ? , t >Lparri

as rcinforccnents.

b)

"1,z.te P L ~ 2 : icd sccn fuic Chiel" of Stcfi 01the 1: Div, mother

St?.ff "f fi cc r, 2nd th e CO of k7 Regt (In: ? cone to a b~ i l d i n g u s t sou th

of Rzpinta1,ln Br idr e fo r a coi~l'erence.

He

had l~ cn rd a t c r -t: lzt t l x Chief of

S ta f f 2 t t h a t t ime had 2roposccl t i e folloV.6ng st ra -t ~g y:26th Iildpt :./T En.

vr2s

t o ho ld Ii?.pintalan tjo tho la s- t x.n.

Our

tro ops vrould be allowed t o c,d-

vance as f a r

as

gra ss y v a ll e y due west of 1kyintal;zn Bridge.

TIlcil thc Sato

iVIed.i.w~tl o r t ~ rb :rod-d c ut off t h e i r l2 se of caxu-&cations with no rJ c r f i r e ,

vrhilc

Jap

fonrard elements, us in,^: 211 ti ic ir c7.vaFlablc firopcTzcr g w ~ s th c

30

;Zs,

SLY

k7

gulls, and two

37

1.m

g a s ,

as ~r rc l l

s,

s x211

?rms

f i r e

-

15-culd c,luriliila'cc our forces from the front,

Fro]? I uorps

-

TIS Adv Ech in-

terrogation of

i7i

25-2-13055, :&iya~w., Tnkmasi.., L U ~ i t , 1-Q Sec,

2

Co,

26

Ind A/T Bn, surrendered vi c IC~,pintzl-z,Luzon,

8

iqr

45;

IC. aI 01112 pp. 3 , b

2.

Jap

Order

To

K i l l

N i

k .tiv~s.

Notebook ccpt :y I G Co o

-cs t of the Lckc Sector Unit, includcs the fol-

lovL6n~long entr ics dated 3.3 ?eb 4.5 o 3 ;hr 45:



1.

27

Apr: Elements of the

124th

In f , i n i t d a t in g

a

northward movemen cver Route

3 sayre

Highmy) k i l led

3

J2.p~6,000 yds

IJ

of Kab-

acan Road junction and captured

1

Korean

4 000

yds N of

the

road junction.

FI I

identified as me:?iber 9th Co,

3rd

Bn, 7, :tli

nf (30th

Div)

s t a t ed h i s bn

moved N

moi~thspreviously.

2.

25 Apr

Guerri l las report approx 5 Japs moving E

f ro n p t 10 miles h 3 Digos.

3

2 A :

Portion of Route

1

im e d i a t e l y :l of Digos

found t o be mined v i t h a e r i a l bombs.

Tirvo

enemy pillboxes, supported

by

mortar f i r e ,

loc ate d vick1it- j; Digos, s tron gly re s i s t-

ing our advance; unreported amount of oppo-

sition clicountered along Route 1 \J of



EXPLANATORY NOTES

1

Panay: Guerrilla report enemy concentra-

tion

Ni?

Sucan,

20 m i

lJ I Iloilo.

2

Enemy continues stubborn resistance from

favorable ground in Northern Highlands.

3

Dumaguete airfield and town wsre secured

by -l.pproxLmately 7001 26 apr the Japs

hacl burned several buildings and with-

drzwl West; main enemy position is re-

ported in vicinity Badiang-Odlumon

approx 7 miles I i of Dumagucte); estimat-

ed strength

400

Bohol: Only minor scattered contacts

nade as our troops scour south half of



G E N E R A L H E A D Q U A K T E R S

S 0 U T H W E S . r P A C I F I C A R E A

MILITARY INTELLIGENCE SECTION, GENERAL

S T A F F

1-111: D A IL Y S U M M A R Y O F E N E M Y I N T E L L I G E N C E

IV: G-2 E S T IM A T E O F T H E E N E M Y S I T U A T I O N

V: M I S C E L L A N E O U S IN F O R M A T I O N

No.

1118

D A T E

26/27 Apr 1945

I

GROUND

SOL0:IIOMS

1.Bo ugainvill e: 25 Apr:

En

shel l ing

2

m i

SSr7 Poro Poro; patrol clashes

i

'-3iF'i Toltai (Yorina R ar ea ); en a c t i v i t y appro:: 4 m ST Rurniki; 32-m S

IJihero, and

1

m SE Kapana; sh el li ng cont inue s Tokinou area.

iJ%17

GU IN EA

2. Aitape-TTe~firak 25 Apr Act ive pa t r o l l i ng continue s Ekprilc sec to r; en posils

l 5

B JZ

JiIaprik clea red; nat ive s r p t Jarjs

;

ake Izbia; area 1m SE t o

I

m EST

Coilcen cleared.

PI~IL~PPI~ES



I1

AIR:

BORIEO

1-fiuching: 26 Apr: S ingle en a/c (poss

T/B)

2001 over a i r s t r i p , sh ot down by

2 T-38s; noon,

PI1ILIF?IIGT S

2.N. Luzon: a ) 24 Apr: (p rob) : 2-3 en B s dropped 11bo:nbs 32nd Div r e a r a re a;

sev ca s cons ider able dam; ea r l y evening.

b) 2h Apr: Single en a/c s t r a f -

ed 25th Div inst l tns ,xi

N17

San Jose; no cas P s l dam; 214CI.

FOFJiIOSA

3,Cienzral: 26 Apr: Recent photos show 82 se r v coiilbat a/c sc a t t e r e d on

31;

a i r -

f i e l d s ; n i l

a/c

24 f i e l d s ; 138 dummies, 102 u/s tr a in e r s,

96

u/s Bs

5

se rv t r a ine r s .

4.1,:.

Coas5: 26 Apr

4E

F/B shot down by

2

P-38s.

5. Kiirm:

26 Apr en

Tpt

a/c shot down by P B ~ Y

mi

ICiirm; 18401.

FRzjJcII 11t30

CIyIITA:

6,Saigon: 26

npr: a)

en Fs avoided 4 P-38s escor ti ng B-24s.

b) uneager

F obsvd by

P B ~ Y ;

lk00I.

NiiBSEI SHOT0

7,01~:inavra: a ) 26 Apr: Sev en a/c approached area a t low a l t ~vi t hc ut s l t s ;

0230-04451; en

B

shot down by LCS

off

HE

coas t Okinavra; 03471.

b)

25 Apr:

No en a i r a t t a c k s f r 24/24001 t o 25/21;001 TF 51).

JLU~A~J

8.Kyushu: 26 A p r : R i l in tcu tn , n i l en a/c s igh ted by D l

P-51s

oil escort

illisson (v~eatliere x t r e m l y

bad

e-moute, ovcr t g t

O

r e twn) ; p l aaes , 6

pi lo ts missing.



T

G 2

ESTIUATE

O

THE ElJi3llJY SI'L'UATION

1. St--ry of t h e Enemy Si tu at io n:

a

Ac ti vi ti es i n Forward Areas:

-

zorthern Phil ippines

Luzon: Two minor co un te ra tt ac ks rep ul se d

3/4

miles SE

Camalig ~1-

bay).

Sc att ere d movements of enemy i n Ternate and Lemery (Salayan Day)

areas; possi'oly 2 cos a r e defending M-S l i n e ME of Sulac. of ?;Zznila,

numerous ya t r o l cl as he s ?,It &tapad-Pacawragan area .

Some defenses observed

8 miaes NJE of Tanay.

I n N Luzon,

stubborn resistance met 1mile NN

Ir is a n and t o 700 yds

of Baguio.

Strongpoint encountered 1200 yds

S1 I

of City.

Arty f i r e decreased Vi ll a Verde Tr a il but determined ground re-

sistance continued.

Ik i n defense l i ne Bclete Pass i n

Vlf

wit11

apex

l'j'00

yds N of Kapinta-lan; a r t y increased t h i s se ctor.

IJuis.2nce ?a ids s t r a f i n g

a'tta'cks- by 1 3 en n/c .

Southern-Central Philippines:

itindanao Some iiIG and mortar f i r e rece iv ed 55 yds 3. of Upper Digos;

no other signif icant contacts .

Cebu: B-tinated

500

enemy contacted

1

3/4 n i l e s I J Cogon; sone re-

si st an ce i n mountains of Compostela.

ISegros: Enemy c o ~ t i n u c d o defcnd from

elaborately

prepared

posi t ions

I i l l 3155 and S of Negr itos ; minor coun era ttack vias repu lsed , &eny

b u r ~ e dDuimguetc Ci ty; no signific:,n'c opposi tion ; pos it io li s on S b?lilc

lbs log li abandoned.

Jolo: Sc att er ed conta cts continued on inlz nd high ground,

New Guinea Enemy posi1;ions 1 rklcs TQJZ of Jkpril:

a i d

1mile SE of

Boiken.

Eougainville Enemy a r t i l l e r y c onti nue s t o

be

received 2 ,miles SSft; of

memy Ca pab ili tie s r y 1118 Cont'd



probably with increasingly s t if fening delaying actions as Egos i tself i s

approached.

Although prelanding day enemy st re ng th i n th i s se ct or was estimat-

ed as approximating two ba tt al io ns , presence of maneuverable t e r r a i n and th e

enemy's general aversion thereto coupled with indicated defensive deployment

along tile Talomo River t o th e north (sea Daily ~ u ~ n m r yo. 1117), suggests

t h a t

any

de fm se i n t he Digos a re a may ollly be of a nominal nature as he

ult im ate ly prosecutes a coas'tal delaying actio n t o th e north t o h is prcsu nably

es ta bl is he d po si ti on s sou th of Davao. (see Enclosure No. 1 )

Operations on Luzon

2

Defense

of

the k l e L e Pass Since the occupation of Eapintalan

on 21 April b? the 2nd Bn,

5

t h In f, enemy resis tance i n tho sec tor has notico-

abl y softened. East and west

of

Highmy

5

our forces have advanced several

thousand yards agains t c~m~arat ivdlyighl; resistailce, iaiile i n the center,

troo ps as tr id e th e hi gl i~ ny ave made smal ler gains again st iaorc dutermined re-

sistance. Yesterds~r he enepyls fr on t lines south of Bslete Pass

had

taken

the fo rn of a IIVlt with thc apex aplxoxSmately 1,500 yards nor%? of Kcpintalan,

and the sid es follovring pronrinent ri dg es north-west and north-east,

It

i s

poss ible the se formidible te rr ai n fe atu res may form the backbone of another

min l ine of res is tance .

It

i s inter estin g t o note th at , wherecs i n %he past ,

our tro ops have not been a ble t o fi nd a weak spot i n the enemyls f r ont l ine s,

k l~ e a s t hvo days has rev ealed th e enemy defending from unconnected s tr o~ gp oi nt ,r

which, i n ti;ree d i s t i n c t insta nces , our fo rc cs have by-passed wit11 only minor

int erf ere nce . This would suggest se ve ra l poss ib il it ie s. The enemy may be

using th e stron gpo ints t o delay our advance ll~hile e f a l l s back -to t h e above

suggcs tcd l i n e of defense; he may now be faced rrith an insoluable problom i n

logist ics , vis : reinforce~nentand supply; or, he

up

f e e l t h e t a c t i c a l v n l - ~ ~ ef

a continued defcilse south of the Pass does not nos z e r i t the cost.

The lat ter

two suggestions - r e fur ther intimatad by several ind ications of a ric?J:ening a t



hem;- Ca pa bi li ti es Cont d

Contld

df t e r sccuri 'ig k m g u e t e a ir f i el d , novernent inland V ~ S uickly initiated t o

intercept the ~d..ti.ldra:~~tllf enemy troo ps t o the Odlumon-Babiang crreas,

9

miles

1 5 of Dumaguetc.

In Southern Negros, the enemy re ta in s no si gn if ic an t c ap ab il it y

t o in te rf er e vdth cu rren t opcrai; ions on t he islc.,:ld.

His r ea cti on t o yesLer-

day s landing I Y ~ S l lar:lcteristic;

s @me att cmpt

my

be Inad- to join elements

cu rr en tl y defending i n t h e Northern I-Iighlands. Ho~*iever, h e d is ta nc e irlvolved

and

t a l ~

or cc s a r c a st r id e or -ivhich could be noved t o in'cprdict with-

draw21 route s, preclude th e su cces sful junc ture of a si gn if ic an t number of th e

Southerr, Negros ga rr is on .

Operations Along the China Coast:

5 140ve~lentof Convoy: During t h e p a s t seve ra l

weeks

sh ipp ing x t i v -

i t y nlong the China

and

Indo-China co as t has been notab ly absant of convoys,

~ 5 t hhc ,enclqT l i ~ i t i n g is movments t o unescorted nercliant ships sin gly or

i n sma.11 numbers. Consequently th 2 si ghJ ~in g n 26 H p r i l of 3 ships composed

of dcstroycr es cor ts and fre igh ter s, 50 i n i . 1 3 ~

SXE

of EIongKong on

E9 ,Tfl3

course

i s

of part icu lr t r i n t e res t a t t h i s time,

i n vietiv of what haas been consid ered

an sf fz c ti vc blockade of t h e South China Sea by our a i r c r a f t and sub:narines.

iilthough this i s t he f i r s t sig hti ng reported of t h i s convoy,

the

p r o bab i li t ieg a r e t h a t i t

originated

i n

tns:

Saigon erea ~irhich s the on ly por t

where a si ze ab le tonnage of ship ping has been rece iit ly cbservcd.

On

20

photographs

revealed.

48

vessels of 21,000T and

a

new type mninelaycr).

01: n t e r e s t iii? -his connection is

2

r ~ c c n t r irated Chin;:sc repor t

t h a t t i e Ja..ps

v r i l l

~ a k e l o . s t z~%tcn~pto rcnlove nate?i..?.ls from

IJ2lay3,

Burma,

and Indo-Ci~ina

by

the end of Junc %sing 140 cargo ships nd avai lab le escorts .

The

encniy has al.perently nade a s u ~ c e s s f u l un of

the

f i r s t l ap

of h i s long gaunllc'c t o t he &pire and i f he

i s

successful i n t h o a t t eq pt ,

k

9-I

f $ , $ i d >

g

" " 1 ~ ~+,

.



8

- Contrd

d ~ ~ ~ e k i d ~

b.

Relat ive Probabi l i t ies :

-

1 ) Def€nse of t h e DaL<ao~'~pproaches:rescnce of ~ 1 ~ n e ~ v e r a b l ee r r a i n

and the energ's gencral aversion thereof coupled with indicatzd defengive de-

plowen% along th e Talo:?lo River t o the north, suggests t h a t any defense i n

the

Digos ares

i3ay

onl y be of

a

nominal nature as he ul tim ate ly prosecutes

a

coas ta l delq- irzg act ion t o

t ; ~ e

or th t o 115s presuniibly es'catslis ied po s it io ns

south of Davao*

2

Dercnsc of the

Baletc

Pass:

Ow

recent coqxiratively large advances

azclinst no tice ably decr eas ed -rcsLstance, c o ~ p l c d sith t he enemy's defending

Zrom strongpoin'c s onl;r, su gg es ts he

m2y lack

the s t rcngth

t o

maintain the

Zormer s trong c onsi sten cy of h is defenses..

3) Ituisance Air Raids B i e q cclpzbili ty of exzcuting is ol at ed nuisance

r a i d s

i s

l i ke ly t o cont inu -e f o r

SOLE

-Li~;lle ,

p a r t i c u l a r l y

- s

t o lior thern Luzon.

4

ii$ixirwrnl i n

S

l legros: S ou th ~ rn kgros, th e cneny re ta in s no

si

gni-fic2nt cc?;pabil ity t o in te rf

r ~ri'ch

cuzran-t; o g ~ r a t i o ~ sn thc: island.

I j is react ion

4Lo

:TcsLerdayt

s

landing

7;12,s

charnc ter f s t i c

;

sorne atterqt

rmy

be

32de

t o join clclncnts c ur re nt ly dcfeilding i n th e ilorthern ifighlands

f.lovraver

t h e dis tan ce involved and

t fne

forces which aro- astride or

could be

noved t o i n t s r d i c t -tii-Ehdr.rk~vzloutcs, prachlds the succcssfu?. j ~ ~ c t ~ ~ ef a

s ign i f ican t i~unbcrof th e S outhc ri~ tegros garrison.

5

l ~ ~ o ~ ~ e m c n t ~

f

Convoy: The

crier-q-

has app are ntl y :lade a succcss i'ul

r'm

o f

t he f i r > t l a p

of

his l ong g r w t l e t t o the B.~ph-eand. i f

ha

i s successful.

i n t h e a-bteml?t a rcsun;-ition o f convoy t r zf f i e

;na;~

be ~ ~ ~ e c t e d ,

*

6 Fl ee t Disposltions ; Gisyersion of cneny f lcc t w i t s prcbably pre-

cludes

a

f l e e t s o r t i e

r

hc near future.



EXPLAIfATORY

N O T S

1 5

A j r

Estimated 8 enemy contscted i n

vicinity Bd-atukan;

Japs

k i l l ed ;

remsinder ~ v i hdrev:.

2. 6

Apr A ~ y ; r o ~ : i ~ t e l y

000

yds

E Kisanto an

estirna5ed Co bivouac, reportedly

o c c u p i ~ 3 n a n 1 troops,

was

found

evacuated Jap

machine

gun

crems

LL0O0 ds E

K i sz n b r e t i r e d a f t e r

beirig fired

upon;

c?ppro~ mztely

Japs equipped ~it l1hree machine guns

eiigaged.

30 30

yds of the town;

a i r

obscrver reports that 55CO

yds

V

o f

upper

Digos

our troops were receiv-

i n g

Ll and

mortar

f i r e

from an un

e s t b a t e d

number o f enemy.



Military

Intelligence Section

eneral

Staff

ioimmm

t 6mIrn SrnWLil i i4

TO z p x a & 5

q p 5

u 7

bz ivimarz a. U 8



Ort

6

4pr:

2 2nd

E h

27th Inf, m d e night a t t ack

advancing 2,000 yds zgainst hi1 op-

posi t ion, and

during &Y

seiz ed posi-

t ions on

; lgh

go-w-d 2,000 yds SE of

and overZo34ing Balete Pass.

2 , n High17.y 3 an enemy strgngpoint

800 yds IJ of Rzipintalzn was by-pass-

ed;

2nd Bz,

35th

fn f

adva,nced t o

positicns 1,700 yds NB of t l ie village.

3.

Agsinst only minor sporadic r e si s t -

ance, 2nd En, l6 l s t In f , advanced

TIW d o n g

a

r i dge t o pos i t ions apgrox

3 500

y6s

STp;of Pass

,

4.

1st Bn,

126th

In£?

at tacked SB t o



G EN ERA L H EA D Q U A RTERS

SOUTHWES T PACIFIC AREA

MlLlTARY INTELLIGENCE SECTION

GENERAL

S T A F F


IV:

G-2

ESTIMATE OF THE EN EM Y SITUATION


No.

D A T E

SOLOMONS

1.5ou gain ville : 24 Apr: Signs of enemy a c t i v i t y

3/4

1 ,

2 and

mi

SE

Tokinotu; enemy she ll ed posns m i S Tokinotu;

s m

~ a prps sighted 1

.mi

S3T Horinu; s t rong enemy posn 1mi

E

Puto Paia (5 mi TOJ ~ i a t e r a p a i a )

Jap at ta ck rep uls ed Mipia; enemy groups con tac ted 2 m i SST Poro Poro,

NBJJ GUINEA:

2,Aitape: 24 Apr 25 Japs moving 11 f r 1-3/4 m i EWE Maprik; enenyrptd

withdrawing from Bainyik; siq arms ammo dump 2300 yds S of Boiken and

rad io s ta t i on 1/2 m i S Kumudu captd,



a ry 1117 Cont'd

I A I R :

IJOLUCCAS:

1,Soel2 I s : 25 Apr: ~ / d bsvd on bV t i p of Taliboe Id.

CELEBa

:

2,Makassar Area: 25 Apr: F

dam

of B-24s bombing Boeloedowang a/d;

F/P t r ni le d formation.

BORNEO

:

3.Labuan: 25 Apr: poss TE se rv a/c on Labuan a/d.

4.Natoena Is: 24 Apr: Rlway a t Soebi K e t ji l re pa ir ed s in ce at ta ck of 23

Apr

PHILIPPINES

:

5,Mindanao: 25 Apr: a ) en a/c st ra fe d t m n on Sl i coast of Cotabato

Prov; 11301.

b) en F str afe d vi ci n rd junction 2; n i l cas; 16501,

FOrnOSA:

6 .s.

Formosa: 24 Apr: made pa ss aga ins t B-24s bombing Tainan a/d.

7,N. Formosa: Night 24/25 Apr: 3 en a/c over Taihoku evaded by B-24,

FmNCH

I N L l O C H I N A :

8,Saigon: a ) 25 Apr: i ) N i l i n t cp tn

by

3 a i rbo rne Fs t o 6 B-24s attack-

ing Saigon tgts ,

i i ) 3 Fs ag gres sive ly in tc pt d dam PB4Y at ta ck in g

shipping i n Mekong Riv er, b) Photos 22 Apr: 20 serv a/c (13 TE

Bs,

7

FS on Tan Son Nhut, bo th rlv;ays se rv .

C H I N A :

%Shanghai: 5 Apr:

N i l

intcptn by 3-4 air bor nc Fs t o 2 B-2Ls; 0140-04131,

JAPAN:

10,Honshu: 24 Apr: 70-80 a/c in tcp td 105 B-29s bombing Hit ach i a/c fac tory

nr Tokyo; 13 a/c dest ,

48

prob dest or dam B-29s missing.

11,Kyushu: 23 Apr: (prob) 12 ba rr agc ba lloo ns obsvd v i c in Miyakonojo,

Navy - Cont d

r y 1 1 1 7 - Contfd



HAINAN

:

18,Yulin Bay: 25 Apr:

A/C

reported bay empty.

CH INA

COAST:

19,Wenchovr: 25 Apr:

1

destroyer, 75

m i

SE, c r s NExN spd 10.

20,Slivatow: 24/25 Apr:

1

med,

1

m

ship,

55

m i

ENE.

21,Iiacao Area: a ) 24 Apr:

4

med ri ve rb oa ts sunk, 2 medium ri ve rb oa ts , 1 m

f r e igh te r , 1p at ro l cr a f t damaged. b) 2 5 Apr :

1

ra ns po rt (7/?000T), 2

tugs, 2 fe rr ie s, river boat s, sev era l barges a t Macao.

NANSEI SHOTO:

22.0kinawa: a ) 25 Apr: Su rfaced sub sig hted, 250 m i W b ) 24 Apr :: sub

contacts vicin 25

m i

from Bolo; 2 o i l sli ck s; prob

1

or more midget subs.

c ) 2, Apr: Sound co nt ac t,

29 m i from Bolo; at ta ck negative.

23,~al:ishima: 25 Apr: 2 fre ig ht er s ( 1 0 0 ~ ) lew up, 40

m i

NE

Ishigaki,

IV

G-2 ESTIMATE OF

THE EI EMY

SITUATION:

1 Shmmary of t he

Enemy

Situat ion.

a. A ct iv it ie s i n Forward Areas:

-

Northern Philippines:

Luzon: I n S' iuzon, enemy ro ck et s were ac ti v e

1

mile SE of

Camalig stubbo rn re si st anc e continued from high ground 2500 yds

SE of town. E.~ ,ensivepa tr ol li ng other Bicol a reas made no conta ctsi

E a s h f Iblanila, heavy opposi tion co ntinued on 2,lt Pacawagan,

memy

defense on V il la Verde T r a i l and along Hmy 5 was a c ti ve and stubborn;

a r t i l l e r y f i r e was inten se and accompanied sev era l lo c a l counter-

a t t acks ,

Our troo ps se ized pos iti on s 2700 yds lit of Imugan and 2300

yds SE of Ba le te Pass.

I n the Baguio area, in te ns e Lnfantry weapons

f i r e . r ece ived Hwy 9 and during capt ure of D t Tlirador, 1,000 yds W

of Baguio.

Heavy a r t i l l e r y appears t o have been emplaced wi th in



Operations on Luzon:

2) Delaying Action Morth of 3aguio.

5 - e ra t i o ns i n MEI:

3)

Coatinuat ion of Shi p~ in g,

Operations on Sfindanao

1 ) Defense of th e Davao Approaches On 25 April, 34t h In fa nt ry

elements continued t h e i r unin terr upt ed southeastward advance a s a n addit-

i o n a l 15 miles of Eoute

1

ware secured.

The only enemy contact established

-#lras i n

tine

v i c i n i t y of Sulatdcan, a-cproximately 1 6 miles west-northwest of

Digos on Davao Gulf, 7:here an es tim ate d 40 Jap s withdrew southeas tward i n

th e face of our ad~rance. Several gu er r i l l a rep orts of eneny a c t i v i t ie s

during

3

and

4

Apr il provide some clue as t o hi s pa tt er n of troog move-

ments and pos si bl e i n te n ti ons i n South NLindanao.

One stated that enemy

tro op s froln IZoronadal ( ~ a r a n g a n i ay ar e a ) were ~Yithdravringnorth toward

Davao v ia ci rc ui to us inl an d ro ut es , In view of our dr iv e toward Davao

Gulf, ~vhichw i l l i s o l a t e enerny troo ps south of Route 1,

t

was t o be

an ti ci ya te d th a t some atteinpt ivould be made t o e x tr ic a te t he Sarangani garr-

isons,

This f l o ~f t r a i f i c may be expected t o continue, i f not increase,

during h e course of which sc at tw ed harassing a t tac ks may be ca rr ie d out

ag ai ns t our narrow L of between Cota.bato and fu tu re ;oositio ns on Davao

G u l f

A second rep ort disc lose s t h a t an uqletermined number of e n e q

ar ? c onc entr ated imn edia,tely no rt h and so uth of Highway 1 a t i t s Digos

terminus.

lihether th e enemy has any in te n t io n of employing t he se personn el

i n a defense 02 or a delayin g ac ti on bef ore Digos, s qucstionable,

Hoslvever,

th ei r presence giv:~shim a capabi l i ty of comi i t t ing these t roops t o e i t he r

of the 'avo xis sion s mentioned above. Gu er ri l las al so claim t h a t an

estimate d 5,000 Japs, formerl y lo cat ed

i n

th e Tibungko-Ilang ar e a (Gulf co ast

Enemy Ca p ab il it ie s Cont

1117 Conk d



probable t h e enemy planned t h i s withdrawal t o pos itio ns north and north-

east of Highway

9

once hi s I r is an l i n e was breached, ra th er than conduct

a f ro n t a l defense of Eaguio, desp i t e the f a c t t he los s o f the C i ty v i r t ua l l y

cut s off hi s for ces t o the south-west and south, Continued res ist an ce along

th e Philippine-La Trin idad T r a i l :would sugg est he

i s s t i l l

concerned with

the ex t r i ca t ion of t roops from the i rn~ edi a te rea .

I t

i s reasonable to

assume t h a t t he more probable lo ca ti on f o r subsequent delaying ac ti on s would

be e a s t of La Tr in id ad on Hi~hzvay11 i n the mounta in passes ra t he r than i n

f r on t of the

town where he ivould be c omitted t o defend i n r e la t i v e l y open

c0U.iD.t~~.

With th e f a l l of Baguio, th e eneny is probably concerned

with

th e securing of La Trinidad only so long as

i t

t akes him t o ex t r i c a t e

h i s fo rces f roin the sec to r , and th a t e f fo r t s w i l l be d i r ec ted tow ard

pr ot ec ti on of Sighway 11 t o th e nor th of the Ci ty through a se r i es of

delaying ac t ions gen era l ly as t r i ae t lie road,

(s ee Encl. No. 2).

Operat ions i n

N E.I.:

3) Contin uation of Shipping: Des pite th e prox imity of th e Tala-

ivan a i r f i e ld s and th e inc reased a i r a c t iv i t y o f our da i ly sh ipp ing sweeps

and searches over th e Ibkkassar S t r a i t s sec tor , rece nt s ig ht ing s indi ca t e

that the enemy

i s

p er si st en tl y keeping open h i s se alan es t o th e more impor-

t a n t p o r t s i n t h e s ou th er n a re a . On Apri l 20, search a/c repo rted 1 a r g e

escor t , s f ia l le r escor ts , 1 (7/9,000 on) t ranspor t , seve ra l small s tack-

a f t v esse l s a t B al ikpapen; 1 (10,000 Ton) freighter, 2 sm al l e r f r e igh te r s ,

many smal l stack-af ves sel s a t Salnarinda N o f ~ a l i k p a p e n )

Considerable

shipping was pr ese nt a t b ot h of t h es e p o r t s t h e f ~ l l o ~ z i n gay.

On 22 April ,

a convoy of 2 gunboats,

2 (2,000 Ton sJ;sck-al.i v ~s ;; c ls acd

ot he rs (prob. t an ke rs ), was observed heading

l

off Makassar.

On 23

Apri l

a/c s ighted 1 (9/12,000 Ton) tra ins port, 1 (2,000 Ton) stack-aft vessel

6



problem of re la ti ve str en gt h assessment.

From a

GHQ

viewpoint, emphasis

i s na tu ra ll y on acc ura te fore ca st s of major enemy

u a i t s g

v i z : Brigades,

Divisions, Corps, etc,;;

i t

i s gra t i fy ing t o record tha t major

units,

o r

groupings, have in va ri ab ly been recognize d throughout th e campaigns of th e

STSPA; the e r r a t i c facto r of ser vic e elements has consequently had l e s s

t a c t i c a l o r s t r a t eg i c s ign if icance ;

i t

haL

not substant ia l ly affected our

operations i n each area.

The reco rd shows t h a t e sti ma ted numbers mere

ul ti ma te ly accounted for , i n sometimes pr ot ra ct ed mopping-up opera tions , vi e

:

_____ ..----..

I

F7X2

STRZNY I N COkBAT

LOCALITY

GHQ

EST (a )

D0CTi"ilENTS (b ) COUNTED DE D

Admiralties

4,000 4,200

4 143

( 4

'iiakde-Sard

6/9,000

6,650

4,109

5 625

2,400

27,180

75 525

238,875 (f)

I

8 516

4

2,987 ( c )

---

791359 ( 4

120,863

Bia

k

Ifoemfoor

Leyte Landing

4/5 90

2,600

25,000

Leyte campaign

55,000

Luzon

160,361 c)



EXPLANATORY NOTES

1 24

Apr:

i r

observers rcport no enemy movar,lsnt

Sayre Highway ex cep t ru ck s si gh te d

nea r Omonay 10 miles N o f ~ a b a c a n ) .

2 24 Apr: Estimated

50

Japs r epor ted by c iv i l i ans

i n v i c i n i t y Kidapzwan.

3 24 Apr: G u e r r i l l a s s t a t e some movement by enemy

t r oops i n t h e Koronadal s ec to r ~a r a ng -

a n i Bay area) t c Davao poss ibly vi a

t r l i l s N from Lake Buluan t o vi c i n i t y

Kidapawan then across

N

slopes Apo,

4 5

Apr: Approximately 40 Japs contact ed 1,000

yds

N

Bulatukan; ct hc rw is e no enemy con t2i -

e s t ab l i s hed i n SE-wsrd movement toward

Digos; a i r obs,zrver re po rt s 7 br idges

S of Bulatmkan burning.



ZPLANRTORY NOTES

1 25 Apr: Elcments of 25th Inf occupied p c s it i o n s

2,900 ya.rds SE of B s l e t r Pa ss ~ibithout

opposi t ion.

2. 24 Apr: Approx 500 rcunds o f a r t i l l e r y f i r e f e l l

on 32nd

iv

f r o n t i n S al sc sa c P as s t o

mark heavie s t concont rs t i on y e t r ece iv-

ed i n any one per iod by our f c r c e s on

Vi l l a Verde Tr a i l .

3 24 Apr 2nd Bn, 12 9t h I n f , suppor ted by a i r

s t r i ke s , t anks, 2 r t y and t ank de s t r oye r s

s t t a c k s d E on lir;y a g a i n s t s t r o n g enemy

r e s i s t m c e and se ized cemetery , 1 ,500

yards

PNV

of Baguio;

1st Bn, 129th Inf

pas sed t hr ou gh th e 2nd Bn and occupied

pos i t i ons on M Tdirc.,dor 1,000 yards V

of Eaguio) a g e i n s t an e s t enerny co.




S O U T H W E S T P A C I F I C A R E A

MILITARY INTELLIGENCE SECTION. GENERAL ST FF

1-111: D ILY S U M M A R Y 1: E N E M Y I N T E L L I G E N C E

I V: G-2 E S T I M A T E O F T H E E N E M Y S I T U A T I O N

V : M I S C E L L A N E O U S I N F O R M A T I O N

No

DATE

111-6 24/25 Apr 1945

SOLOI22IJS:

1.Bo ugainv ille: 23 Apr: E n o r con-Lack continu e Tolcinot-u and Eihero s ec to rs ;

a r t i l l e r y f i r e recvd Soraken se ct or ; en gun ernplacenent lcnocked out;

host i le s i le l l ing and a Jap at tack repulsed Horinu sector .

GiJIiJF&:L

2

.&itape-T.', ~rz,l: 23 Apr

:

Posils -t%c 1Idacha occupied; s eve ra l :?liner p a t r o l

clasiles

.

PflILIPPIEJsS

3.ifindanao': a ) Cotabato: 23 Apr: F er ry cr os si ng Pulang i R 3500 yds N r d

1116 Cont ld



I AIR:

JAVA

:

1.Soeraba ja Area: 23 Apr: a ) Scv

TE

a/c si gh te d a t Tandjoeng Perak a/d.

b

Lone SZ a/a obsvd a i d ~ o r n e ver Soerabaja S t r a i t s ,

C3LEBRS

:

2

.&nbesia: 23 Apr Single a/c s ighted a t h b e s i a a/d.

BOl?XEO:

3.1dangro~e

3t:

23 Apr: 2 non-aggressive Fs sig ht ed 10 m II, by search a/c;

16261.

jang: 22 Apr :

a )

Poss a i r s t r ip s ighted . b ) Air s t r ip a t S ibu,appeared

serv.

PHILTi'PI; ES

5.~uzon: 2L Apr: Lone en F dropped 2 bombs

?

s t ra f e d ar e a a t T a y ~ g N. Cen-

t r a l P l a in s) ; 5-n 4 K I A , other cas sus-hailled; 21301.

FOR] TOSA :

6.il;iirun: 23 Apr': Lone @ t a/c s ighted 35 m i

N,

c r s ?I?,, by patrol a/c;

06251.

7,Pcscadores: 2L Apr: 2 u / i Fs were evaded bjr

2

~-2 ~s.

SOUTH

CTIIEIA

SEA:

8.Flian Thie t Area:, 23 Apr:

4

u/ i

SE

a/c stglited

O

m i

E&J, c r s IQTE, by

p a tr o l a/c; 12001.

,

i5kl:SEI SIIOTO:

9.lMyalco 22 Apr :

15

of 25

en

a/c de st avl?ile taking o ff, by US c a rr ie r a/c.

10 IshigakF: 22 Apr 4 n a/c shc t dovm y

US

ca r r i e r a /c.

JAPAId

ll.IIor_shu: Pi~otos22 Apr: To ta l of 052 s e rv en z j c

5b

TG 683 SE) revealed

i n coverage of 11: akds c

F P

base (,Tokyo t Bagoya i s Centers).



17.Grea-t iiatoena

Is: 3

Apr:

1

picket boat a t tacked off S coast; douStful

r e s u l t s

HIIIIJAPJ

:

18.Sainah Bay:

23

Apr:

1

anker (7/10,300~),

2

f reighters (3500/6000~) ,

2

u / i

v s l s i n v ic in , c r s

is

spd unkno~vn,

19.3akli Bay: 2 3 Apr

:

3

f r e i g h t e r s ( 7 0 0 ~ ) )

1

f reightcr- tpt (300/1200~) .

CHIXA

COAST:

20,Svfatow:

24

Apr

3

freighters (TOOT)anchorsd,

21,KonsRong a )

3

Apr

: 1

ugger sunk,

27 m i IT.

b ) 24 Apr

:

nedium river

boats sunk,

2

damaged,

1

r e i g h t e r ( 7 0 0 ~ ) nd

1

patrol craf t danaged,

70

m IPFi.

22.Xacao:

23

Apr

:

merch v s l

(, J~ooT),

23. General 24 -4pr: Canton, fIongfiong iibr s e,npty.

IJAiLrS31

S lO_TO

24,Okina~w Area:

24

Apr: pos s sub sound cont ac t,

5

mi from Bolo; a/c at ta ck s

negative.

EXPI33

:

2~.SZlinonoselci S t r a i t : 22 Apr: Photos reveal

3

f r i g a t e s ,

4

medium landing

ships ,

43

merch vsls

( 6 5, 0 00 ~ o t a l ) ,

I V

G 2 ESTI1;IRTE OF

TXE

Elm.IY SITVATIGN

1

S m a r y of the Encniy Si tua t ion:

a, A ct iv it ie s i n Forward Areas:

-

Northern .?hilippines

Luzon:

Hcavy

f i gh t i ng

continued It

p i l e s Lc,;aspi and nea r i~lala-

bog; no contacts

8

n i l e s

Nli

naet ani

a t

Lab0 (~ ain ari ne s lorte).

Z

of

E ~ e a y a p a bi l i ti e s C on tf d

116 -

Contcd



Opera-tions i n th e KanseP Shoto:

4

Defense of Southern Okinawa.

Opcrations i n Japan

5 A i r Concentra tion f o r Offensive-Defensive Operations.

Operations on Iilindanao

1 ) Dcfcnse of t he Davzo Approaches: The encmyls >robable course of

ac iio n f o r 3efonse i n iddndanao bccaxe fu rt he r cr ss ta li ze d on 24 i i p r i l a s a

rc s~: l t of an addi t ional

unopposed 16

mile advmce soutn-eas t al on i Highway 1;

cur forces have nov pushed ap~~roximtel-;r

/5'

of the distance bctvreen Kabacan

2nd Digos on Davao Gulf.

; is

pre vto usl y noted, th e seizr.re of t he liabacnn

r0ac.l junc tion sevc rcd th e pri nc ip al north-south overlancl road

lid<

e-L~rcein

Cagay~n nd Davao, I-t

i s

now rcpo rtc d tiia-L th e 3,000 Jzps s ta te d by ~; uer ril la: :

t o be 7,000 yard s c a s t of Dilap (see Dail y Sui~laaryNo, 1115) a r e under command

of Lt, Col, Takumi; t h i s o f f i c e r has been ca r r i e d as

O

166th Ind

Inf

Bn,

75th Brig &de (100th

N v .

This ide nt if ic at io n allnost conclusively indic ates

that tlie 166th Ii?d ZIP Bn, probably aug:xclltcd by oth er elements of th c 75th

B r i ~ a d e

nd

a l a r p number of

miscellaneous

base and se rv ic e personnel,

i s

now located north o th e occupied road junction 2nd thereby vir tx al l x isolateci

from i t s parenat un i t i n th e Davao arca.

I n e f f e c t t h i s c u t s o ff a t l e a s t 1/8

of th e 100th Division conbat str eng th and raduces i t s effectiveness propor-

t ional ly .

It i s not bel ievcd tha t the in ab i l i t y o f t he 75 th Brigade e le-

ments t o complete a. -u~dthdrav~klo Davao, w i l l i m t e r i a l l y a l t e r t h e e ne r~ yl s

pro2ected defcnsivc scbemc,

If he c l cc t s to' ~ C S E I I ~hor t of t he Dava~City

a re a i t s e l f ,

th e most l og ic a l a re a vroilld

be

t h e Apo Xange, a s t r i d e the canal-

ized Route I zp~r or,c h o Digos.

Terrain here

i s

e::cc.ptionallg rugged ~ f i t l i

t he r oad p ~ ~ s s i n glo se t o lclt

:TO

t he h i~hc s - t ~cnk

n

thc Phrilippinc Archi.-

pelago.

I Io~fe~er ,o date, no si gn if ic an t $cSenses have been rcportcd i n t h i s

Encay Capabili i e s - Go~l~t

6

Contld

3

Troop 2eali~nmcnt



from his positions on

IIi-t

..iC2ta3a, <h.j cnemy nay have withdrawn the bulk of h i s

rema.ining stre. -.t11 no rt h tl crcss th e ;i,hrikin a River t o p os it io ns on 11% ?amitin,-;.,

:,It

Lai~fita2nd I L t 7uyr.o (aWroxirnatcly

s$

ni lLs

SSE

:%n ta lban ) , l oav in~

s:1a11 f x c c t o hold Lhc

lint

s o u t l of th e r i v e r from itit Pa.calm&?n t o th e

Bosoboso 2 i ~ r c r . On i, t Pa ca w ~y ~n ,ur f or co s pushed t o vri-thin 30 yards of

the cr cs t xkerc

-tlx

cneny continues hi s stubborn re sis tan ce from pillboxes.

On th e Z2.r cas te rn

fla'n1;

oC t h i s

possible

n m l i c o of defcnsc, i n th e v i c i n i t y

of idt 2hpatzd (6000 yds I Q of Xe~crr l3osoboso), a i r o bs cr vr tion h,2s di scl os ed the

enemy

con str uct ing and inpro ving new dufansivc pos iti on s, while our ground

f

orccs r cp or t ilenvy re si st an ce south and soutil-wcst of the re.

it

i s tl~ u3tfl;il f t l ? ~ ricmyhzs cnoui;h s ~ r e n ~ t l lo ndie t h i s

consol idctLd znd unif i ed l in e.

I t i s

morc probable, i f

his

troops are commit-

ted ovcr such

z

a r p fron ' , (npproximately

7

milcs) , he :;rill cl la r~ ct er is t i ca l l :

defe ni fro n sclec tod st ro ns poi lzts ,

v i e :

t h e c r e s t s of tlleso several mountains.

I n

a 13

cvcnt, provided h i s main disp ositio ns n re as

indicated,

they fur ther

s?~.[:i;~sth c p o s s i b i l i t y ~f an cventual ~~it3ldrawalo the north-east , rat her

than nor th to re inforce the Ipo area since these d isposi t ions lcave h i s west

flcnk and most

accessible

L of i n t o t h ~po secto r vulnerzble to &tack

frcm t h e west i n t h e a re a e ~ s t f iihntdban.

po ss P~ lc : o;li:;r?mint of t he enemy's di sp os it io ns t o thc north

of

t ,;

idhrikina diver along an

ES;-Yl>jl

'Jinc, ]\It Pamitinan-IvItLamita-ER Purro,

v~su.lds:1~gcstan c v ~ n t u a l cithdra'c'ral north-east fr ox thc sector , ra th cr than

nor th iinto the Ipo area,

Operc:.tions i r ;

t h o ~l~.=.nscihot0 :

4)

Dcf cnse of Southern Okinava i ii:;h t h e ex cept ion of s nipcr and

pat ro l ac t ions , r p i i z o d incxy rc;s'istr.ncc has ceascd on c ~ n t r 2 l nd

1,'

Okinav:~ a n d c n Ie Shiin3; zssault opei'ations thcrc are comjjleted.

R~.r"chercon-

e bp

s@

9

~ 9

)'&

ie

c,a,i,ics - cont d

b

6

-

Conttd

Operations I n Japan:



5 )

.&Concentration f o r Offc~sive-Defensive Operations: Ae ria l photo-

grapliic coverL;;e of

13 main

airdromes and scq dan e bases i n Kyushu

(IQ, I ;I

and South 1lyu.shu a i r ce ntc rs ) on 22 April, r ~ v e a l c d t o t a l of

86.5

service-

able ai rc ra ft . Photos of the same gcncral coverage on

2 1

April rcvcaled a

to ta l of 630 serviceable aircraft , rcprbscnt ing

a

gc?.in of approximate ly 23.5

ai r c ra f t i n a 24-hour period

(one

hundred nineteen

on

airdrcmes cot COT-ercd

21 April) ,

Signif icant ly, 654 0;" the 865 t o t a l on 22 April were si ng le engine

e i r c r a f t ,

a gr eate r po rti on of vrhic:? probcibly a r e f i ~ h t e r s ,

Thc balance of

2 1 1

2ircra-f-Lvrere twin cn~in,e~ypes, bombcrs predominating.

On Nonshu, photo coverage of

14

airdroxes and one seaplane base

i n the Tokyo and liagoya a i r ce nte rs revealcd a t o t a l of 052 serv icea ble ai r-

c m f t .

Of th ese, 683 tvcre s in gl e engine t m e s anc? bu t

54

were twin engine

a i r c r a f t .

t

appe5rs fr oa thi s increasing concentration of a i rc ra ft a t

thc ?rinciplc air-centers i n tho hp ir c , the cneniy my be marshzlling his

homelcnd a i r strcngt 'n fo r a t-cvc-phasc p lm of opera tio n: a )

Protection

of

south 1u;;3~t~rnapan by

a

renmrcd large-scale a i r offensive directed agains'b

our forces i n the Nai-lsei Shotos, ut il iz in g h i s ai rc ra ft now i n the thre e

pr in c ip le Kyushu a i r cerltci-s to raou11t th cse opera tions; and b) Conccritration

of f ighters

i l l

the Tokyo-Ik.goya a i r c ~ n t c r s o r a poss ib le i~ l t cns i f i c d e r i a l

dcfcnsc of s tm te z i c ta rc e ts i n hea r t of thc b p i r c ,

Thc

to t al of 1,727 ai rc rz fl

concentrated

i n thcse two vi ta l

areas probably represents t h o greater port ion cf t he er,emyts a i r s t r c n ~ t h e-

-mining i n Japan proper, 2nd lcnd s crcdancc t o h i s probsble course of act io n

as

pointed out above,

b. Relat ive ~Frsbabil i t ics:

1 ) DeQ~izscof the Davao Approaches: Tho basic contention rcaxiins

un-



Daily Summary No.

1116

EXi LATJATORY NOTES

1

22

Apr:

Previously reported enemy group, estimated

by g u e r r i l l a s t o number 3,000, now s t a t e d

t o

be

under command Lt, CoL. Takurni Identi-

f i e d a s

CO

166th 1nd Inf

Bn

str on gl y sug-

gosting is o la ti o n from Davao of t h i s bat ta l-

ion n addition to other elements 75th

Brigade.

2

24 Apr

Without eneny opposition, elements of t he

3kth nf

reached iCiclapai:~an, appror:imately

94

oad miles SZ

of

Eabacan road junction.



No



6

psLA JAT3RY NOTES

1

S m l l suicide pockct estimated at 2 300 isolated

on t i p .

2

Ib-tobu peninsula

cleared

except

f o r scattered

snipers.

3

Found lightly

held.

4 Found l ightly held

5

f.Jo sigi i i f icant change i n f r o n t lines 29-23 April



G EN ER A L H EA D Q U A R TER S

SOUTHW EST PACIFIC ARE A

MILITARY INTELLIGENCE SECTION, GENERAL STAFF

1-111: DAILY SUMM ARY OF EN EM Y IN TE LL IG EN CE

IV:

G 2

ESTIMATE OF

T H E

ENE MY SITUATION


No

I-J-1.5

D TE

23/24 Apr 1945

NE JJ

GUINEX:

1.Aitape-YJewak: 22 Apr: Enemy pocket remains v i c Maprik; hvy enemy f i r e

encountered; pa tr ol c lashes

1

r i l e s S Banak; na t i ves rp t ac t i v i t y S

and SE Xaravuop.

PHILIPFINES:

2,Mindanao: a ) Cotaba to: 21/22 Apr: No contact made 5000 yds SE on Hwy

1 r Dilap; plane recvd small arms f i r e NE Dilapj unkn nbr Japs engaged

junction

H w y

1 and Sayre

H w y

ne ar Xabakan; gu err r p t 500 Japs 6 m i N

nknuangan and 3000 Jap s 7000 yds E Di lap, b ) Zamboanga: 21/22 Apr:

a r y 1115 - Cont

d



PHILIPPINES

1.Lueon: 23 Apr: N. Lueon: 2 en Fs st ra fe d on Aparri s t r i p

1

on Echague;

2 l e f t smoking.

FORMOSA

2.Matsuyama a/d:

23

Apr

N i l

in tc p tn 23 B-24s bombing a/d f a c i l ;

4.A

holed

9 planes.

3.ICiirun:

22 Apr: Lone en

B

(poss Tpt) shot down by

P B ~ Y

0

rL KT

Kiirun;

07171.

FREIGCH I N DO CHIIA

4, ~a ig on : 23 Apr: N i l i n t c p t n 2 4 ~ 2 4 sombing naval base; 2 en Fs driven

off by P-38s.

SOTTTH

CH INA

SEA:

5,Hainan: 23 Apr a ) Sin gl e F i n t c p t d 20 B-24s bombing miscellan eous

shipping i n Yul in hbr ; n i l dam, b)

N i l

i n t c p t n

11

~ 2 5 st t a c k i n g t g t s

-

along

SE

coast Hainan,

CH INA

6,canton:

22

Apr: 2 en Fs agg ressi vcZ yintc ptd

P B ~ Y

t tacking en shipping;

1F dam; 09001.

NANSEI SHOT0

7,Okinawa: a ) 23 Apr:

1

en

D/S

shot down by Corsair 50

m i N

Ublo; 2

clf l-gd a/c de st on grd; n i l en a i r a t tac ks, af ternoon. b) 22 Apr: i )

60 en a/c i n

11

even ing r a ids ; t o t a l 54 a/c des t (most by CAP, 4

su ic ides); aval losses , 1minesweeper,

&

1LCS sunk by su ic id es , 2

DD s

darn; 2 n r x i sse s ; f i r s t r a ids f r R l a t e r f r Yr i i ) 40 en a/c 200

m i ~SrQVOkinawa, c r s 100 deg, rp td - by PBM; 20151.

30 en a/fc 240

i n i ITNW

Okinawa, c r s 100 deg, r p t d by PBM; 20351. c ) 22 Apr 16 en a/ c sho t

Nawj - Contfd

-

Contld



PHILIPPINES:

7,Zamboanga: 23 Apr: P os it iv e sub conta ct , 30 ini E of Zamboanga.

8.Cebu: 22 Apr: Liloan: Beached ba rges ,

1

enemy Pt destroyed by PTfsr

FORMOSA

9,VVes-L Coast: 22 Apr:

1

ugger sunk off Tainan.

FRBNCH INDO-CHEJA :

10,Cape St..Jacques:

23

Apr: a )

1

des t royer escor t . b )

1

d i r e c t h i t on

f r e i gh t e r i n drydock* c )

1

(150/300~)f r e igh t e r l e f t burning s i nk ing

1.5m i

E*

11,Tourane: 23 Apr: 2 1 r g

11

u/i vsls 8.5

m i

NxW

12.Tonkin Gulf:

23

Apr;

3

u / i v s l s .

13,Weichow Is: 22 Apr:

1

ugger dam,

HAIFJAN

:

1 4 , ~ a i n a nBay: 22 Apr: 1-L power lauirches

6c

luggers s t ra fed; 3 damaged.

15.yuli.n ' ~ a ~ :3 Apr: a ) 5 (300/1000~) fr ei gh te rs anchored, b)

1

(2000/

4 5 0 0 ~ ) r e i g h t e r t r a n sp o r t ,

1

(1000/1500~) f re igh te r t ranspo rt ,

1

(1900T) tanker,

a t

l e a s t

2

(150 / j00~) r e igh t e r s , 14 barges destroyed.-

1 6 , ~ ~oast: 23 Apr: 1u/i transport anchored.

CH INA

COAST:

17.Shanghai: 22 Apr: a )

1

destroyer,

3

destroyer escor ts ,

3

u / i f r e i g h t e r s

70 m i SSE, b )

1

destroyer escor t ,

1

subchaser 60 mi

ESE,

c rs S. c) 1

destroyer , 3 destroyer escor ts , 110 m i NE, c r s

IW,

d) 2 dest royer escor ts ,

1

(7000/8500~) f re ig h te r transpo rt, 120 mi NE, c r s NE, e ) 1 i g h t c r u i s e r

or l r g des troyer, 3 escor t s , 2 (2000/4500~) f re igh ter t ranspor t s , 9 m i

Eg cr s E.

18,Foochow: 22 ilpr: 300 bo ats (18 f t le ng th ), 100

m i

NZ,

crs SE;

1

h o s p i t a l

ship 50

mi E,

c r s NE,

19.Amoy: 22 Apr:

1

destroyer , 6

s m

freighters anchored;

1

destroyer escor t ,

Swnmary of the Eneqy Situatio

15

Contld



co as ts p a r ti c u l a r ly Labuan-Lintangan-Sibuco are a, Yf cooast,

Cebu: Idinor co ntac ts a11 op er at io na l ar ea s; enemy ap pa re nt ly

moving N route s t o 10 miles inlan d from E coast.

llegros Res ista nce conti nues Northern Highlands une st nbr

enemy contz.cted 2 i mi les S Manzanares; enemy act ive ,

Bohol: Contact wit h undetermined number nez r Kambingay;

p o s s i b i l i t y Bohol ga rr is on may evscuate t o Dumaguete (SE Megros)

~J ioluccas N i l ground activity,

New Guinea: In te ns e enemy f i r e encountered from enemy pocket v i c

Maprik; enemy a c t i v i t y rpt d S and S Karavrop.

Bougainville-Mew Britain:

N i l

s ign i f ican t g round act iv i ty ,

b,

Ac tiv i t ie s i n Rear Areas:

Formosa:

N i l

a i r oppsn B-24si

Saigon: Weak a i r dppsn t o B-24s.

Hainan:

1

en oppsd 5-24s; n i l oppsn B-25s.

Canton:

2

en Fs aggres sivel y in tc pt d P B ~ Y .

Okinawa: 60 en a/c at ta ck ed nava l for ce s, evening 20 Apr;

54

a/c

dest , 1mines~~eeper

1

LCS sunk by suic id er sj n i l en a i r at tac ks rpt d

f o r 23 Apr.

J a ~ a n :%eak a i r re ac ti on t o i3-29s at ta ck in g Kyushu a/ds 22 Apr; of

30 in t cp tr s , P-51s sh ot down 9 i n sweep of 2 Nagoya aa/s ; agg res sive

coordinated a i r at tac ks a gai nst 5 2 9 s boinbing Tachiarai a/d (18 l L p r .

c. Ide n t if i c a ti on s : 2nd Co, 21 st Xort ar Bn; documents captd

1

mile

NE

1Jev: Bosoboso 3 ~ a n i l a ) ,

3rd Rocket Gun Bn;

F V

Captd vic Quexon

strip (E Manila).

9 th r I n t e l Regt; enemy dead Ipo are a

3

1,knila).

d. Weather: I nt er fe re nc e wi th Luzon grd sup por t China photo missions.

-

Conclusions,

Enemy Czpabilities - Conkt

1115

Cont d



Operations on Luzon:

2

Defense of t he Bale te Pass During the pa st few days our

pa tro ls probing north of lo c a l strongpoints west of i lapintalan reported the

enemy appeared t o be bui ldi ng up a s tr on g defense l i n e ato p an East-lAJest

ridge 1,500 yards

IlTnJFT

of the vi l lag e.

East of Kapintalan, th e 27th In fa nt ry

opera-Ling 4,200 yards t o th e n ort hea st, developed st ro ng enemy po si ti on s

manned by fr es h :; ell-fed troops. S t i l l fu rt he r eas t, gu er ri l l as repor t an

enenry concentration of troops c s t i m t e d a t approximately bat ta li on str eng th

on the Old Spanish T r s i l .

These troops po ssibl y ar e a mobile forc e i n

sqnport of posLtions south of the re i n h t l a n River Valley (6,030 yards

ENE

of Putlan). These l a t t e r posit ions permit

-to1

enemy to naintain his

th r ea t to our rea r in s t a l la t io ns as wel l as to prevent our use of the Tr ai l

toc&aunvent h is Bale te Pass bas tio n,

The other two positions would indicate

hi s concern over th e po ss ib il i t y of our outflanking his present main defenses

astride IEgh?vay 5 espec ia l ly i f he i s r ein fo rc ing the ea s t f l ank, a s t he

fre sh t roops the re would indicate.

it i s

i n t e re s t ing to note, t h a t of 5

of thes e troops ki ll e d i n actio n by the 27th Infantry, none had id en ti -

f i ca t i on tag s or carr ied other means of id ent if i cat ion .

This

i s

i n con-

formance wi th a po ss ib le measure of cou nte r-i nte lli gen ce by th e ,enemy

has been suggested by sev era l other rece nt s im ila r instanc es,

The enernyls at te nt io n to h is flank s i n the Balete Pass

sec tor would indi ca te he inten ds t o prevent our encirclement 02 < is pre se nt.

defenses astride Highway

5

Fur the r, t h e rein force men t end improvement

thereof, suz;;ests he has no int en ti on to re lin qui sh h is hold on the Pass,

de sp ite th e im?inent col lap se of defenses i n th e Baguio se ct or and th e con-

t inuing reduction of h is reserve stren gth i n the Balete rea r areas.

Enemy Cap ab il it ie s Conttd

1115

Cont Id



The vv et ur i ore area in to

the vulnerable Java Sea, -ohere Alllied ubmarines lurk, i s agparently born

of desperation, but not in expl ica ble i n view of th e cncrnyts other alter nak ives

vi z: ail attempt to r un the blockade of our submarines and a ir c r af t t o th e

Empire, o r remain i n the Singapore area u n t i l a l l imit s a re repaired ut

r i sk ing fu r the r damage as a i r s t r ik es

a rc

stepped up.

The enemyls s i tu a t io n i n th e NEI-Singapore ar ea

i s

s t e a d i l y

dete rio rati ng and desperate measures t o obtain a maximum use for transportation

runs and convoy missions t d t h h i s r e ~ a i n i n g ni ts may be expected.

Operations i n th e China Coastal Area:

5 Usc of licrchant Shipping: Although the Singapore-Empire

l i f e l i n e has becn severed f o r normal convoy trafTi c, s igh tin gs f or t he past

several days >e fl ec t a p a r t i a l resumption of ship-oing ac ti vi ty , both along

the North China Coast, and along th e Indo-China-:lainan se ct or .

On 20 April,

photos of Saigon re ve aled approximately 21,000 to ns of merchant shipping ,

including severa l s izea ble merchant unit s ; several lar ge fr e ig ht ers were

al so present on 2 2 April. t Yulin Bay (S ~ a i n a n ) n 22 kZpri1, a conca-

ra t i on of 2 large tankers, 3 medium and 2 s m d l freighter-transports Tias

reported,

Recent searches have fa i l ed t o disc lose any s ignif ican t a c t iv i t y

a t Hongkong, Swato~v, Amoyg or Formosa por ts ot he r than a g re a t ly incr ea se d

volume of sa i l in g junk and small cr af t t r af f i c a long th i s sect ion of the

former mainconvoy ro ut e, Convoy t r a l f i c northward from Shanghai has as ye t

been r e l a t i v e l y unmolested ot he r tha n by submnarincs.

Apparently the losses

suf ie red from a ttempting to run the ga un t l e t ~ v i th arge merchant ships from

Hongkong t o Amoy has convinced th e enemy t h a t a more p r ac t i ca l al t e r na t i v e i s

the course which he i s seemingly follovcing a t t he p re sen t time,

>iz,

s taging

h i s lar ge merchant shi ps ei th er sin gl y or i n small numbers up th e Indo-China



EXPLIINBTORY NOTES

1 2 2 Apr: Gu er ri ll as r ep or t approximately 700

Japs located

6

miles N l knuangan; anothe r

for ce, esti mate d a t 3,000, were

re po rt ed 7,000 yds E of Dilap moving

E

(Comment: both reports believed

exaggera ted, pa r t i cu l a r l y l a t t e r one);

enemy

s m l l

arms f i r e r eceived by

f r ie nd ly plane 7,000 yds N of Dilap.

2

2 2 2 3

Apr:

Intcrrnittent enemy

M

and mortar f i r e

receive d d uring ni gh t by elsments

34th Inf v i c i n i t y junction Route 1

and Sayre Highviay; fol lo win g day,

wi th ou t enemy opposi tion , 3 rd Bn,

34th Inf se ized IZabacan town and made

junction with other elements 34th Inf

( i n amphibious move up Pulangi R ) and

secured ferry cross ing

M

of Kabacan

Japan Enemy Trends April 45

Documents

Transcript of Japan Enemy Trends April 45