Enemy Installation Iwo Jima 2

37 mm Anti-Tank Guns

37 mm mm (typ (type e 94 ) AT gun In emplacement emplacement constructed of sand-fi sand-filled lled fuel fuel drums with log log roof. (TA-182W) (TA-182W)

Fron Front t view of 37 mm AT emplacement emplacement showing destruction caused by artillery fire. (TA-98D)

86

OPEN

AR TILLE RY

EM PLA CE ME NTS

7

m Ant -Tank -Tank

One of two supplementary emplacements for 47 mm AT gun In nearby covered p r i m ar ar y p o s i t i o n s . Note, logs placed over p o s i   tion to support camou (TA-183L) flage.

47 mm AT gun covering road at TA-201W.

87

37mm Anti-Tank Guns

37 mm AT gun In open open emplacement emplacement showing how terrain aided aided In protecting the posi tion. (TA-217G)

37 mm AT gun In open open emplacement. (TA-217G)

88

MORTARS— 320 mm Spigot Mortars

Photo of 320 mm (32 cm) spigot mortar

320 mm mm (32 cm) spigot mort ar position showing natural camoufl age. Heavy screen garnished with brush was placed over the opening for for complete complete concea lment. (TA-183L)

projectile.

320 mm (32 cm) spigot mortar (TA-199K) tion.

In firing firing posi

89

150 mm Mortars

View of 150 mm (15 cm; morta r la firin posi tion located near an other 150 mm mortar position under con stru ctio n. Note the the earth embankment used in place of baseplate. (TA-198X)

Entrance to a cave cave which had a 150 mm (15 cm) mortar set up in the en trance . When not actu ally firing, the mortar was drawn back Into the cave for protection and concealment. (TA-216J)

90

150 mm Mortars

View of the fire port of a 150 mm (15 cm) mortar position. Adjoining this emplacement were personnel quarters, food storage and ammunition storage. (TA-198X)

150 mm (15 cm ) mortar position under con struction. (TA-198X)

150mm Mortars

•

One of a battery of four 150 mm (15 cm) mortar Note aiming positions. stakes on wal ls. These emplacements are approxi mately 11 feet feet In dia  meter and had ammunition stored In a small covered adjoining cham ber. A fire fire trench led led to to living qua r ters for the mortar crew. (TA-184I)

REINFORCED

CONCRETE

CONCRETE /TABLE 3 .HIGH

WALL

CAV E IN IN

BLAST WALL OF l"0" SANDSTONE BRICK BRICK WITH

Pla n view view of a 150 150

m (15 cm) cm)

or tar

" HIGH

PROTECTED

EARTH

it io .

(TA(TA-19 198X 8X

Mortars

in 120 mm (12 cm ) dual purpose gun emplacement. (TA-182U)

Close-up of 81 mm mortar in positio position n at T A-18 2U. Some antiaircraft 81 mm mortar projectiles were found on the island.

93

Mortars

View of 81 mm mortar emplacement. Note how foliage and ter rain were used for concealment. (TA-181D)

81 mm mortar position made of rice ba gs. The mortar Is con ceal cealef efl l par tial ly by brush covering part of the emplacement. (TA-182M)

94

Grenade

Launchers

Well built cut-stone and log position for grenade launcher. (TA-181T)

Grenade launcher posi (TA-182M) tion.

95

—

0 mn Ro

t Laun Launch cher er

200 mm (20 cm) rocket projectiles in shelter adjoining launching (TA-183M) site.

Mortar-type 200 mm (20 cm) rocket launcher.

96

200 mm Rocket Launcher

200 mm (20 cm) mobile rocket launcher In camouflaged emplace ment. (TA-183M)

View of 200 mm (20 cm) rocket launcher from shelter for ammunition. (TA-183M)

97

0 mm mm Rocket Laun Launch cher er

Close-up of 200 mm (20 cm) mobile rocket launcher. (TA-201I)

200 mm (20 cm) rocket rocket launcher in covered position with a frame built over it to sup  port camouflage. (TA-201I)

98

250 kg Rocket Launcher

This captured picture of the V-trough rocket launcher for a 250 kg. aerial bomb is Identical to the rocket launch er used on Iwo Jlm a.

99

kg

Rocket

Launcher

Ruins of V-trough rocket •launcher in deep draw with rock dam for pro tection from seaward side Rocket motor like one noted in trough and 63 kg. bomb were stored in cave cave noted to left of picture. (TA-184P)

V-trough rocket launcher for 63 kg. bomb in natu ral emplac ement formed b y d e ep ep d r a w . Ammun i tion was stored in ad joinin joining g cav e. (TA-184P)

10

PILLBOXES

Heavily constructed pill box well camouflaged. : Note limited field of I fire. (TA-183U)

Pillbox sited down runway of airfield No. 1. Camou flage net conceals the fire fire lane. (TA-183X)

Pillboxes

Entrance to pillbox (TA-147M)

View of entrances to two Jap pillboxes firing to ward ward, , airfield N o. 1. 1. It was not unusual to find pillboxes this close to (TA-183L) gether.

Pillboxes

Inside view of pillbox for heavy machine gun. (TA-165E)

Front view of pillbox showing fire This position can be seen port. only from the front because of nat ural concealment. (TA-198R)

Pillbox having a roof of concrete two feet thick covered with rock and earth. The The natural camouflage makes detection difficult. (TA-182R)

RIFLE

PITS

Rear view of rifle pit constructed from a tank turret affording excel lent observation of ter rain sloping south from airfield No . 2. Sand Sand bags and camouflage were blown away. (TA-182E)

Front view of one-man rifle pit showing fire These positions ports. were not only excellent rifle pits but also good observation posts for f l a nk nk i n g A T p o s i t i o n s .  (TA-181B)

10

Rifle

Pits

Rifle pit carved out of lava blo cks . (TA-183R)

••k

,, ,.

Tank turret turret mounted in field, field, near beach used rifle pit. (TA-165 E)

as

Entrance to concrete rifle pit. These positions were found scattered throu gh out the South ern are a. (TA-181B)

TANKS

Japanese medium tank em- placed in a fixed posi tion to act as a pillbo x. Rugged terrain through out the area dictated this use of tank. This tank had a 57 mm gun mounted in the turret. (TA-21QS)

Rear view of Jap model 96 light tank revetted in position to fire fire on ap proaches to airfield N o. .

10

Tanks

g tank, mounting a 37 mm gun, in tank ser vicing area. (TA-EOOY)

Tank in fixed position camouflaged with rocks and vegetation which have been largely blown away. (TA-200E)

Tanks

Destro yed Jap medi um slope

tank mounting 4 7 mm gun

of of Hill 382 .

Revetted and camouflaged medium tank mounting 47 m m g u n , m od od e l 9 7 (TA-201G)

10

Jap 47 ram AT gun and revetted

model

97

on foot of of

(TA-200Y) (TA-200Y)

Rear view of Jap medium tank model 97 revetted In foot of slope of Hill 382. (TA-200Y)

DUMMIES

Dummy pillbox showing fire These positions were port. nume rous throughout the West Beach area. (TA-180E)

Dummy covered artillery position . This emplac e ment consisted of a dum my gun with a wooden frame supporting sand moun d. Rocks were placed placed on either side of the fire port to give the effect of a fire lane. (TA-180A)

Dummies

Dummy gun4 Before sand was blasted by naval gun fire from around gun, this position appeared In aerial photos to be a covered artillery em placement. (TA-166A)

This dummy pillbox con sisted of no more than a mound of sand with a wooden box frame to simulate a fire port placed on one side to give the appearance of a pillbox. (TA-198F)

Dummies

Two dummy tanks made of wood were found in this constructed and could be moved around easily. The enemy hoped to con fuse interpreters of aerial photos. (TA-216L)

Dummy tank. Note detail of turret showing tank gun. (TA-216L)

Ill

RADAR AND RADIO STATION

Radio station used as blockhouse. Note thick ness of wa ll s. ' Despite the many direct h i t s ,  this Installation had to be cleaned out with flame (TA-184K) throwers.

Destroyed

early warning radar on Hill Hill 382. (TA-200Y)

Reinforced concrete radio radio station showing direct hits from artillery and and infantry we apo ns. (TA-184K)

REVETTED

VEHICLES

AIR RAID SHELTERS

At some time a heavy machine gun was mounted In the open ing . Note the the direc tion markers around the opening, (TA-H8A)

Entrance to air raid raid shelter. This air raid shelter was constructed with walls of soft lava rock around the entrance and leading down Into the the shel ter. Vegetation was grow ing over the earth cover providing excellent camouf lag e. This Instal Installa la tion was not h armed throughout the the operation. (TA-148A)

Air Raid Shelters

Interior view of well constructed cut-stone shelter with concrete r o o f . Medical supplies indicated that this was used as a first aid station. (TA-164E)

Interior view of air raid shelter showing how airplane fuselage was used to form In terior of shelter. (TA-148A)

AMMUNITION

STORAGE

Underground ammunition storage. (TA-234H)

This This cave had many arms that that led off off from main main passage. (TA-234H)

Ammunition

Storage

A well camouflaged a mmuni  tion storage for 81 mm mortar ammun itio n. This position showed no effects of our heavy gun fire or artillery fire. It was Just below the ground and extended back approxi mately 30 feet and led to a large room with connect ing tunnels leading to adjoining rooms. (TA-199K)

Anti-tank ammunition storage dug into a bluff. (TA-200Y)

Underground Underground ammu nition storage (T-181G)

for for 25 mm mm MG.

MISCELLANEOUS

Gasoline motor to generate power for communications. (TA-164J)

Switchboard for public address system at air field No. 1. (TA-164J)

Miscellaneous

General view of earth- covered stone and con crete housing for public address system at air field field No . 1. (TA-164J)

Interior of communications room In earth-covered con crete structure at air field No . 1. This posi tion was knocked out by flamethrowers. (TA-164J)

COMBINED ARMS RESEARCH LIBRARY FORT LEAVENWORTH, KS

3 1695 00535 5185