Busting Fortress Palembang - PTBS (J) vs Grollub (A)

[PT boat skipper]

GHQ REPORT

04 July 1942



SOUTHERN ARMY (Burma-Java-Ambon)

Enemy sitrep:
Defeated enemy units from Myitkynia are retreating into China over the mountains.

Current op:
INMON SAKUSEN:
2nd Area Army: ACTIVATED: will assume tactical command of all ground units in NE India. Will arrive in Singapore in 9 days.
16th Army: Three divisions (9th, 19th and 38th). Supported by 21st and 10th Division. Minor ground offensive in progress against Silchar - no further attack will be made until the situation changes. The purpose is to draw enemy reserves away from 17th Army.
25th Army: IGD and 56th Divisions are reorganizing at Rangoon. 5th Division and army artillery will move by trains to Rangoon during the next days. 18th Division will support 17th Army until 25th Army has been transported to Chittagong.
17th Army: 10th Division is supporting 16th Army. 52nd and 53rd Division are moving towards Comilla, supported by 25th Army (18th Division).
15th Army: reorganization in process until 15 July.
2nd Army: ACTIVATED Southern Army reserve force (24th and 25th Division). ETA to Singapore is 12 days.

Combined Fleet: Concentrated near Chittagong.
KB1: No indications of enemy ships in area west Sumatra.
dai-2 Senkansentai (Kongo and Haruna) is supporting KB1.
dai-1 Senkansentai (Nagato & Mutsu) is supporting transportation of 17th Army.
2nd Fleet: Suiraisentai is supporting transportation of 17th Army.

21st Air Flotilla, 3rd & 5th Air Division: air interdiction of enemy airfields IVO Calcutta will begin.

Losses:
Japanese aircraft
NIL

Enemy aircraft
NIL

Note: during next 24H the main effort will be air interdiction of enemy airfields IVO Calcutta.

Planned op:
16th Army operation II: Landing at Port Blair.
SANGOKUICHI SAKUSEN: 16th Army operation III:



CHINA EXPEDITIONARY ARMY

Enemy sitrep:
40+ fighters at Chungking.

Current op:
North China Army (1st, Mongol and 12th Armies): NIL.
China Exp Army (11th and 13th Armies): 11th Army (three divisions) attacked the mountain area NW from Ichang: Japanese Deliberate attack at 82,46 (near Patung)

Attacking force 36813 troops, 322 guns, 42 vehicles, Assault Value = 1340, adjusted assault: 1056
Defending enemy force 13477 troops, 137 guns, 0 vehicles, Assault Value = 379, adjusted defense: 631, terrain(+), leaders(+), experience(-)

Japanese assault odds: 1 to 1

Assaulting units:
13th Division
34th Division
40th Division
11th Army

Japanese ground losses:
924 casualties reported
Squads: 4 destroyed, 90 disabled
Non Combat: 0 destroyed, 1 disabled
Engineers: 0 destroyed, 5 disabled

Defending enemy units:
30th Chinese Corps
1st Chinese Cavalry Corps
26th Group Army

Enemy ground losses:
855 casualties reported
Squads: 3 destroyed, 45 disabled
Non Combat: 0 destroyed, 5 disabled
Engineers: 0 destroyed, 2 disabled
Guns lost 14 (1 destroyed, 13 disabled)

25th Air Flotilla: Hengyang airfield was attacked and damaged.

Planned op:
SANGOKUICHI SAKUSEN: the total conquest of China.



4th FLEET (Central Pacific)

Enemy sitrep:
ALERT! enemy TF spotted by aircraft nine hexes east of Baker island. Note: the enemy might attempt to bombard Baker island.
ALERT! radio interception of enemy TF about 15 hexes east of Tahiti. Note: most likely a major convoy.

Current op:
NIL.

Planned op:
KATSUIRO SAKUSEN: third phase: New Caledonia and SE Port Moresby



SOUTHEAST AREA FLEET (New Guinea - South Pacific)

Enemy sitrep:
Enemy strongpoints are Port Moresby and Horn island.

Current op:
Buildup of air (lvl 4) and naval bases at: Shortland and Tulagi.
Buildup of air (lvl 4): Hansa Bay, Madang.

Planned op:
Buildup of air (lvl 4) and naval base at: Manus
KATSUIRO SAKUSEN: third phase: New Caledonia and SE Port Moresby



5th FLEET (North Pacific)

Enemy sitrep:
Enemy TF spotted by air recce three days ago close to Karafuto remains unspotted.

Current op:
Air reinforcements are operating from Hokkaido airfields.
Garrison and airbase units are being deployed from Ominato to the Kurile islands and Karafuto.

Planned op:
NIL.



ASW and CONVOY COMMAND

Enemy sitrep:
Many enemy submarines spotted west of Rangoon and Victoria Point.

Current ASW op and convoy movements:
AMBER: 1. Rangoon-Singapore: Losses: 1 xAK (24 JUNE), 1 PB (28 JUNE).
GREEN: 2. Singapore to Japan: Losses: NIL
GREEN: 3. Borneo to Truk: Losses: NIL
GREEN: 4. Shanghai/Korea/Manchuko to Japan: Losses: NIL
GREEN: 5. Karafuto-Hokkaido to Honshu (Japan): Losses: NIL

GREEN = no losses due to enemy action (last 10 days).
AMBER = minor losses due to enemy action (last 10 days).
RED = losses due to enemy action (last 10 days).

Planned ASW op:
Deploying ASW-air units to airfields North Borneo - Central Philippines.

[PT boat skipper]

GHQ REPORT

05 July 1942



SOUTHERN ARMY (Burma-Java-Ambon)

Enemy sitrep:
ALERT! 24 B-17 conducted the first deep strike against Magwe airfield in Burma.
ALERT! enemy DD spotted east of Ceylon.

Current op:
INMON SAKUSEN:
2nd Area Army: will assume tactical command of all ground units in NE India. Will arrive in Singapore in 8 days.
16th Army: Three divisions (9th, 19th and 38th). Supported by 21st and 10th Division. Minor ground offensive in progress against Silchar - no further attack will be made until the situation changes. The purpose is to draw enemy reserves away from 17th Army.
25th Army: IGD and 56th Divisions are reorganizing at Rangoon. 5th Division and army artillery will move by trains to Rangoon during the next days. 18th Division is supporting 17th Army until 25th Army has been transported to Chittagong.
17th Army: 10th Division is supporting 16th Army. 52nd and 53rd Divisions are moving towards Comilla, supported by 25th Army (18th Division).
15th Army: reorganization until 15 July.
2nd Army: is Southern Army reserve force (24th and 25th Division). Singapore ETA is 11 days.

Combined Fleet:
KB1: No indications of enemy ships in area west Sumatra.
dai-2 Senkansentai (Kongo and Haruna) is supporting KB1.
dai-1 Senkansentai (Nagato & Mutsu) is supporting transportation of 17th Army.
2nd Fleet: Suiraisentai: Diamond harbour was bombarded.

21st Air Flotilla, 3rd & 5th Air Division: Jessore and Silchar airfields were attacked and damaged. However, no enemy aircraft present. Enemy B-17 attack against Magwe airfield caused the following losses.

Losses:
Japanese aircraft
Ki-46-II Dinah: 2 destroyed on ground
Ki-21-IIa Sally: 6 destroyed on ground
Ki-30 Ann: 2 destroyed on ground
Ki-48-Ib Lily: 3 destroyed on ground
Ki-43-Ic Oscar: 4 destroyed on ground

Enemy aircraft
B-17E Fortress: 3 damaged

Note: during next 24H the main effort will be CAP/AAA-trap over 17th Army.

Planned op:
16th Army operation II: Landing at Port Blair.
SANGOKUICHI SAKUSEN: 16th Army operation III:



CHINA EXPEDITIONARY ARMY

Enemy sitrep:
40+ fighters at Chungking.

Current op:
North China Army (1st, Mongol and 12th Armies): NIL.
China Exp Army (11th and 13th Armies): 11th Army (three divisions) again attacked and defeated the enemy in the mountain area NW from Ichang:

Attacking force 36169 troops, 322 guns, 42 vehicles, Assault Value = 1272, Japanese adjusted assault: 732
Defending force 12823 troops, 136 guns, 0 vehicles, Assault Value = 298, Allied adjusted defense: 259, terrain(+), experience(-), supply(-)

Japanese assault odds: 2 to 1

Assaulting units:
13th Division
34th Division
40th Division
11th Army

Japanese ground losses:
437 casualties reported
Squads: 2 destroyed, 24 disabled
Non Combat: 0 destroyed, 6 disabled
Engineers: 0 destroyed, 7 disabled

Defending enemy units:
30th Chinese Corps
1st Chinese Cavalry Corps
26th Group Army

Enemy ground losses:
4042 casualties reported
Squads: 132 destroyed, 41 disabled
Non Combat: 229 destroyed, 40 disabled
Engineers: 7 destroyed, 9 disabled
Guns lost 44 (21 destroyed, 23 disabled)
Units retreated 3

25th Air Flotilla: Changteh airfield was attacked and damaged.

Planned op:
SANGOKUICHI SAKUSEN: the total conquest of China.



4th FLEET (Central Pacific)

Enemy sitrep:
NIL. Note: no signs of yesterday'2 spotted enemy TF.

Current op:
NIL.

Planned op:
KATSUIRO SAKUSEN: third phase: New Caledonia and SE Port Moresby



SOUTHEAST AREA FLEET (New Guinea - South Pacific)

Enemy sitrep:
Enemy strongpoints are Port Moresby (80+ fighters) and Horn island. Bombers (25 B-25) are based at Merauke.

Current op:
Buildup of air (lvl 4) and naval bases at: Shortland and Tulagi.
Buildup of air (lvl 4): Hansa Bay, Madang.

Planned op:
Buildup of air (lvl 4) and naval base at: Manus
KATSUIRO SAKUSEN: third phase: New Caledonia and SE Port Moresby



5th FLEET (North Pacific)

Enemy sitrep:
NIL.

Current op:
Air reinforcements are operating from Hokkaido airfields.
Garrison and airbase units are being deployed from Ominato to the Kurile islands and Karafuto.

Planned op:
NIL.



ASW and CONVOY COMMAND

Enemy sitrep:
Many enemy submarines spotted west of Rangoon and Victoria Point.

Current ASW op and convoy movements:
AMBER: 1. Rangoon-Singapore: Losses: 1 PB (28 JUNE).
GREEN: 2. Singapore to Japan: Losses: NIL
GREEN: 3. Borneo to Truk: Losses: NIL
GREEN: 4. Shanghai/Korea/Manchuko to Japan: Losses: NIL
GREEN: 5. Karafuto-Hokkaido to Honshu (Japan): Losses: NIL

GREEN = no losses due to enemy action (last 10 days).
AMBER = minor losses due to enemy action (last 10 days).
RED = losses due to enemy action (last 10 days).

Planned ASW op:
Deploying ASW-air units to airfields North Borneo - Central Philippines.

[PT boat skipper]

GHQ REPORT

06 July 1942



SOUTHERN ARMY (Burma-Java-Ambon)

Enemy sitrep:
ALERT! five enemy ships (CL/DD) spotted by air recce (I-32) SE from Ceylon.

Current op:
INMON SAKUSEN:
2nd Area Army: will assume tactical command of all ground units in NE India. Will arrive in Singapore in 7 days.
16th Army: Three divisions (9th, 19th and 38th). Minor ground offensive in progress against Silchar - no further attack will be made until the situation changes. The purpose is to draw enemy reserves away from 17th Army.
25th Army: IGD and 56th Divisions are reorganizing at Rangoon. 5th Division and army artillery are moving on trains to Rangoon. 18th Division is supporting 17th Army until 25th Army has been transported to Chittagong.
17th Army: 10th Division will advance and then attack NE of Silchar. 52nd and 53rd Divisions are moving towards Comilla, and will then advance to the NE, supported by 25th Army (18th Division).
15th Army: reorganization until 15 July.
2nd Army: is Southern Army reserve force (24th and 25th Division). Singapore ETA is 10 days.
4th and 21st Division: will attack toward Imphal. Note: one tank regiment has cleared a road to the SW from Silchar.

Combined Fleet:
KB1: No indications of enemy ships in area west Sumatra.
dai-2 Senkansentai (Kongo and Haruna) is supporting KB1.
dai-1 Senkansentai (Nagato & Mutsu) is supporting transportation of 17th Army.
dai-15 Suiraisentai: will bombard Port Blair.
2nd Fleet: dai-2 Suiraisentai: conducting Daily bombardments of Diamond harbour.

21st Air Flotilla, 3rd & 5th Air Division: no air attacks by either side.

Losses:
Japanese aircraft
NIL.

Enemy aircraft
NIL.

Note: during next 24H the main effort will be CAP/AAA-trap over 17th Army.

Planned op:
16th Army operation II: Landing at Port Blair.
SANGOKUICHI SAKUSEN: 16th Army operation III:



CHINA EXPEDITIONARY ARMY

Enemy sitrep:
40+ fighters at Chungking.

Current op:
North China Army (1st, Mongol and 12th Armies): NIL.
China Exp Army (11th and 13th Armies): NIL.
25th Air Flotilla: bad weather prevented flying.

Planned op:
SANGOKUICHI SAKUSEN: the total conquest of China.



4th FLEET (Central Pacific)

Enemy sitrep:
ALERT! enemy TF spotted east of Canton island.
ALERT! Radio transmissions detected at 220,177. Note: many hexes east of Tahiti. Suspected convoy.
ALERT! Heavy Volume of Radio transmissions detected at 141,182. Note: east of Auckland. Suspected convoy
ALERT! Heavy Volume of Radio transmissions detected at Pearl Harbor (180,107).

Current op:
NIL.

Planned op:
KATSUIRO SAKUSEN: third phase: New Caledonia and SE Port Moresby



SOUTHEAST AREA FLEET (New Guinea - South Pacific)

Enemy sitrep:
Enemy strongpoints are Port Moresby (80+ fighters) and Horn island. 25 bombers (B-25) are based at Merauke.

Current op:
Buildup of air (lvl 4) and naval bases at: Shortland and Tulagi.
Buildup of air (lvl 4): Hansa Bay, Madang.

Planned op:
Buildup of air (lvl 4) and naval base at: Manus
KATSUIRO SAKUSEN: third phase: New Caledonia and SE Port Moresby



5th FLEET (North Pacific)

Enemy sitrep:
NIL.

Current op:
Air reinforcements are operating from Hokkaido airfields.
Garrison and airbase units are being deployed from Ominato to the Kurile islands and Karafuto.

Planned op:
NIL.



ASW and CONVOY COMMAND

Enemy sitrep:
Many enemy submarines spotted west of Rangoon and Victoria Point.

Current ASW op and convoy movements:
AMBER: 1. Rangoon-Singapore: Losses: 1 PB (28 JUNE).
GREEN: 2. Singapore to Japan: Losses: NIL
GREEN: 3. Borneo to Truk: Losses: NIL
GREEN: 4. Shanghai/Korea/Manchuko to Japan: Losses: NIL
GREEN: 5. Karafuto-Hokkaido to Honshu (Japan): Losses: NIL

GREEN = no losses due to enemy action (last 10 days).
AMBER = minor losses due to enemy action (last 10 days).
RED = losses due to enemy action (last 10 days).

Planned ASW op:
Deploying ASW-air units to airfields North Borneo - Central Philippines.

[PT boat skipper]

GHQ REPORT

07 July 1942



SOUTHERN EXPEDITIONARY ARMY (Burma-Java-Ambon)

Enemy sitrep:
LR air recce find only four ground units at Colombo. Note: Is Ceylon practically empty? enemy is likely using Madras and Trincomalee as additionally naval bases.

Current op:
INMON SAKUSEN:
2nd Area Army: will assume tactical command of all ground units in NE India. Will arrive in Singapore in 6 days.
16th Army: Three divisions (9th, 19th and 38th). Minor ground offensive in progress against Silchar - no further attack will be made until the situation changes. The purpose is to draw enemy reserves away from 17th Army.
25th Army: IGD and 56th Divisions are reorganizing at Rangoon. 5th Division and army artillery are arriving to Rangoon on trains. 18th Division is supporting 17th Army until 25th Army has been transported to Chittagong.
17th Army: 10th Division is advancing and will attack NE of Silchar. 52nd and 53rd Divisions are moving towards Comilla, and will then advance to the NE, supported by 25th Army (18th Division).
15th Army: reorganization until 15 July.
2nd Army: Southern Expeditionary Army's reserve force (24th and 25th Division). Singapore ETA is 9 days.
4th and 21st Division: will advance and attack toward Imphal.

Combined Fleet:
KB1: SE of Ceylon and will advance within attack-range in 24H. Enemy recce aircraft and submarines spotted.
dai-2 Senkansentai (Kongo and Haruna) is supporting KB1.
dai-1 Senkansentai (Nagato & Mutsu) near Rangoon.
dai-15 Suiraisentai: bombarded Port Blair successfully.
2nd Fleet: dai-2 Suiraisentai: at Chittagong.

ACTIVATED 3rd Air Army: will co-ordinate all air activities in NE India.
21st Air Flotilla, 3rd & 5th Air Division: Silchar airfield was attacked. Only enemy activity was air recce.

Losses:
Japanese aircraft
Ki-21-IIa Sally: 1 destroyed by flak

Enemy aircraft
NIL.

Note: during next 24H the main effort will be CAP/AAA-trap over 17th Army.

Planned op:
16th Army operation II: Landing at Port Blair.
SANGOKUICHI SAKUSEN: 16th Army operation III.



CHINA EXPEDITIONARY ARMY

Enemy sitrep:
40+ fighters at Chungking.

Current op:
North China Army (1st, Mongol and 12th Armies): NIL.
China Exp Army (11th and 13th Armies): NIL.
25th Air Flotilla: Changsha airfield was attacked and damaged.

Planned op:
SANGOKUICHI SAKUSEN: the total conquest of China.



4th FLEET (Central Pacific)

Enemy sitrep:
ALERT! enemy TF spotted ten hexes WSW of Canton island.
ALERT! Heavy Volume of Radio transmissions detected at 180,188. Note: south of Tahiti. Suspected convoy.

Current op:
NIL.

Planned op:
KATSUIRO SAKUSEN: third phase: New Caledonia and SE Port Moresby



SOUTHEAST AREA FLEET (New Guinea - South Pacific)

Enemy sitrep:
Enemy strongpoints are Port Moresby (80+ fighters) and Horn island. 25 bombers (B-25) are based at Merauke.

Current op:
Buildup of air (lvl 4) and naval bases at: Shortland and Tulagi.
Buildup of air (lvl 4): Hansa Bay, Madang.

Planned op:
Buildup of air (lvl 4) and naval base at: Manus
KATSUIRO SAKUSEN: third phase: New Caledonia and SE Port Moresby



5th FLEET (North Pacific)

Enemy sitrep:
NIL.

Current op:
Air reinforcements are operating from Hokkaido airfields.
Garrison and airbase units are being deployed from Ominato to the Kurile islands and Karafuto.

Planned op:
NIL.



ASW and CONVOY COMMAND

Enemy sitrep:
Many enemy submarines spotted west of Rangoon and Victoria Point.

Current ASW op and convoy movements:
AMBER: 1. Rangoon-Singapore: Losses: 1 PB (28 JUNE).
GREEN: 2. Singapore to Japan: Losses: NIL
GREEN: 3. Borneo to Truk: Losses: NIL
GREEN: 4. Shanghai/Korea/Manchuko to Japan: Losses: NIL
GREEN: 5. Karafuto-Hokkaido to Honshu (Japan): Losses: NIL

GREEN = no losses due to enemy action (last 10 days).
AMBER = minor losses due to enemy action (last 10 days).
RED = losses due to enemy action (last 10 days).

Planned ASW op:
Deploying ASW-air units to airfields North Borneo - Central Philippines.

[PT boat skipper]

FLASH REPORT

08 July 1942

TO: COMBINED FLEET/ADM YAMAMOTO

FROM: KB1/VADM NAGUMO

TEXT: WE HAVE BEEN ATTACKED BY 30 B-17 HEAVY BOMBERS FROM CEYLON. 20 BOMBERS SHOT DOWN BY CAP AND AAA.
FIVE ENEMY MERCHANT SHIPS SUNK NEAR COLOMBO.

[PT boat skipper]

GHQ REPORT

08 July 1942



SOUTHERN EXPEDITIONARY ARMY (Burma-Java-Ambon)

Enemy sitrep:
ALERT! enemy moved the B-17 flotilla from Calcutta area to Ceylon from where it attacked KB1 (see below). Note: this is very well as a major enemy air asset is severely depleted instead of attacking our advancing ground units.

Current op:
INMON SAKUSEN:
2nd Area Army: will assume tactical command of all ground units in NE India. Will arrive in Singapore in 5 days.
16th Army: Three divisions (9th, 19th and 38th). Minor ground offensive in progress against Silchar - no further attack will be made until the situation changes. Note: The purpose is to draw enemy reserves away from 17th Army.
25th Army: IGD and 5th Division are reorganizing at Rangoon. 56th Division is embarking ships for Chittagong. 18th Division is supporting 17th Army until 25th Army has been transported to Chittagong.
17th Army: 10th Division is advancing and will attack NE of Silchar. 52nd and 53rd Divisions are advancing to the NE from Comilla, supported by 25th Army (18th Division).
4th and 21st Division: will advance (SE and SW of Silchar) and attack toward Imphal.
15th Army: reorganization until 15 July.
2nd Army: Southern Expeditionary Army's reserve force (24th and 25th Division). Singapore ETA is 8 days.

Combined Fleet:
KB1: moved within attack-range of Ceylon.

Japanese losses
A6M2 Zero: 3 destroyed

Enemy losses
B-17E Fortress: 9 destroyed
5 xAKL sunk

dai-2 Senkansentai (Kongo and Haruna) is supporting KB1.
dai-1 Senkansentai (Nagato & Mutsu) near Rangoon.
dai-15 Suiraisentai: will support transportation of 56th Division to Chittagong.
2nd Fleet: dai-2 Suiraisentai: at Chittagong.

ACTIVATED 3rd Air Army: will co-ordinate all air activities in NE India after arrival to Rangoon.
21st Air Flotilla, 3rd & 5th Air Division: 23rd Indian Division at Tezpur was attacked. The only enemy activity was air recce.

Losses:
Japanese aircraft
NIL.

Enemy aircraft
NIL.

Note: during next 24H the main effort will be CAP/AAA-trap over 17th Army/Comilla.

Planned op:
16th Army operation II: Landing at Port Blair.
SANGOKUICHI SAKUSEN: 16th Army operation III.



CHINA EXPEDITIONARY ARMY

Enemy sitrep:
40+ fighters at Chungking.

Current op:
North China Army (1st, Mongol and 12th Armies): NIL.
China Exp Army (11th and 13th Armies): NIL.
25th Air Flotilla: Resting.

Planned op:
SANGOKUICHI SAKUSEN: the total conquest of China.



4th FLEET (Central Pacific)

Enemy sitrep:
NIL.

Current op:
NIL.

Planned op:
KATSUIRO SAKUSEN: third phase: New Caledonia and SE Port Moresby



SOUTHEAST AREA FLEET (New Guinea - South Pacific)

Enemy sitrep:
Enemy strongpoints are Port Moresby (75+ fighters) and Horn island. 20+ bombers (B-25) are based at Merauke.
ALERT Heavy Volume of Radio transmissions detected at Brisbane. Note: 50+ transports in Port, only a handful of bombers at airfield.

Current op:
Buildup of air (lvl 4) and naval bases at: Shortland and Tulagi.
Buildup of air (lvl 4): Hansa Bay, Madang.

Planned op:
Buildup of air (lvl 4) and naval base at: Manus
KATSUIRO SAKUSEN: third phase: New Caledonia and SE Port Moresby



5th FLEET (North Pacific)

Enemy sitrep:
NIL.

Current op:
Air reinforcements are operating from Hokkaido airfields.
Garrison and airbase units are being deployed from Ominato to the Kurile islands and Karafuto.

Planned op:
NIL.



ASW and CONVOY COMMAND

Enemy sitrep:
Many enemy submarines spotted west of Rangoon and Victoria Point.

Current ASW op and convoy movements:
AMBER: 1. Rangoon-Singapore: Losses: 1 PB (08 JULY).
GREEN: 2. Singapore to Japan: Losses: NIL
GREEN: 3. Borneo to Truk: Losses: NIL
GREEN: 4. Shanghai/Korea/Manchuko to Japan: Losses: NIL
GREEN: 5. Karafuto-Hokkaido to Honshu (Japan): Losses: NIL

GREEN = no losses due to enemy action (last 10 days).
AMBER = minor losses due to enemy action (last 10 days).
RED = losses due to enemy action (last 10 days).

Planned ASW op:
Deploying ASW-air units to airfields North Borneo - Central Philippines.

[PT boat skipper]

INTELLIGENCE REPORT

09 July 1942

TO: COMBINED FLEET

FROM: KB1

TEXT: 70+ enemy fighter aircraft and two combat TF are at Colombo. Most likely one TF of 2 DD and one TF with 3 CA/CL and 2 DD. There are also four ground units at Colombo.

At Trincomalee two AKEs and one AMc were sunk in the harbour after our port attack. There are two ground units at Trincomalee.

END

[PT boat skipper]

GHQ REPORT

09 July 1942



SOUTHERN EXPEDITIONARY ARMY (Burma-Java-Ambon)

Enemy sitrep:
ALERT! enemy moved 40+ fighters to Silchar and also made a major air attack (110 medium bombers) against 16th Army's defensive positions at Silchar. Note: the air attack did not in any way effect on-going ground offensive.

Current op:
INMON SAKUSEN:
2nd Area Army: will assume tactical command of all ground units in NE India. Will arrive in Singapore in 4 days.
16th Army: Three divisions (9th, 19th and 38th). Minor ground offensive in progress against Silchar - no further attack will be made until the situation changes. Note: The purpose is to draw enemy reserves away from 17th Army.
25th Army: IGD and 5th Division are reorganizing at Rangoon. 56th Division is embarked on transports for Chittagong. 18th Division is supporting 17th Army until 25th Army has been transported to Chittagong.
17th Army: 10th Division is advancing and will attack NE of Silchar. 52nd and 53rd Divisions are advancing to the NE from Comilla, supported by 25th Army (18th Division).
4th and 21st Division: will advance (SE and SW of Silchar) and attack toward Imphal.
15th Army: reorganization until 15 July.
2nd Army: Southern Expeditionary Army's reserve force (24th and 25th Division). Singapore ETA is 7 days.

Combined Fleet:
KB1: made a port-attack on Trincomalee. Note: enemy had a CAP-trap over Colombo. This was expected.

Japanese losses
A6M2 Zero: 1 destroyed

Enemy losses
Kittyhawk I: 2 destroyed
P-40E Warhawk: 3 destroyed
2 AKE and 1 AMc sunk

dai-2 Senkansentai (Kongo and Haruna) is supporting KB1.
dai-1 Senkansentai (Nagato & Mutsu) near Rangoon.
dai-15 Suiraisentai: supporting transportation of 56th Division to Chittagong.
2nd Fleet: dai-2 Suiraisentai: at Chittagong.

ACTIVATED 3rd Air Army: will co-ordinate all air activities in NE India after arrival to Rangoon.
21st Air Flotilla, 3rd & 5th Air Division: enemy ground units at Jessore was attacked.

Losses:
Japanese aircraft
NIL.

Enemy aircraft
NIL.

Note: during next 24H the main effort will be CAP/AAA-trap over 17th Army/Comilla.

Planned op:
16th Army operation II: Landing at Port Blair.
SANGOKUICHI SAKUSEN: 16th Army operation III.



CHINA EXPEDITIONARY ARMY

Enemy sitrep:
35+ fighters at Chungking.

Current op:
North China Army (1st, Mongol and 12th Armies): NIL.
China Exp Army (11th and 13th Armies): NIL.
25th Air Flotilla: Resting.

Planned op:
SANGOKUICHI SAKUSEN: the total conquest of China.



4th FLEET (Central Pacific)

Enemy sitrep:
NIL.

Current op:
NIL.

Planned op:
KATSUIRO SAKUSEN: third phase: New Caledonia and SE Port Moresby



SOUTHEAST AREA FLEET (New Guinea - South Pacific)

Enemy sitrep:
Enemy strongpoints are Port Moresby (75+ fighters) and Horn island. 20+ bombers (B-25) are based at Merauke.

Current op:
Buildup of air (lvl 4) and naval bases at: Shortland and Tulagi.
Buildup of air (lvl 4): Hansa Bay, Madang.

Planned op:
Buildup of air (lvl 4) and naval base at: Manus
KATSUIRO SAKUSEN: third phase: New Caledonia and SE Port Moresby



5th FLEET (North Pacific)

Enemy sitrep:
NIL.

Current op:
Air reinforcements are operating from Hokkaido airfields.
Garrison and airbase units are being deployed from Ominato to the Kurile islands and Karafuto.

Planned op:
NIL.



ASW and CONVOY COMMAND

Enemy sitrep:
Many enemy submarines spotted west of Rangoon and Victoria Point.
Three enemy submarines spotted near Karafuto.

Current ASW op and convoy movements:
AMBER: 1. Rangoon-Singapore: Losses: 1 PB (08 JULY).
GREEN: 2. Singapore to Japan: Losses: NIL
GREEN: 3. Borneo to Truk: Losses: NIL
GREEN: 4. Shanghai/Korea/Manchuko to Japan: Losses: NIL
AMBER: 5. Karafuto-Hokkaido to Honshu (Japan): Losses: 1 SC (09 JULY).

GREEN = no losses due to enemy action (last 10 days).
AMBER = minor losses due to enemy action (last 10 days).
RED = losses due to enemy action (last 10 days).

Planned ASW op:
Deploying ASW-air units to airfields North Borneo - Central Philippines.

[PT boat skipper]

INTELLIGENCE REPORT

10 July 1942

TO: COMBINED FLEET

FROM: KB1

TEXT: 100 enemy fighter aircraft discovered and engaged at Madras. There are also eleven ground units at Madras.

Enemy losses: one xAP, one xAKL, one AMc, six fighter aircraft
own losses: six A6M2, nine D3A1, nine B5N2.

END

[PT boat skipper]

GHQ REPORT

10 July 1942



SOUTHERN EXPEDITIONARY ARMY (Burma-Java-Ambon)

Enemy sitrep:
ALERT! enemy are re-positioning ground troops from Silchar to the NE and to the SE.
Enemy made air attacks (40 medium bombers) against 10th Division.
Enemy moved more than 80+ fighters from Howrah airfield to Madras IOT counter KB1 (se above INT REP).

Current op:
INMON SAKUSEN:
2nd Area Army: will assume tactical command of all ground units in NE India. Will arrive in Singapore in 3 days.
16th Army: Three divisions (9th, 19th and 38th). Minor ground offensive in progress against Silchar - no further attack will be made until the situation changes. Note: The purpose is to draw enemy reserves away from 17th Army.
25th Army: IGD and 5th Division are reorganizing at Rangoon. 56th Division is embarked on transports for Chittagong and will arrive in 24H. 18th Division is supporting 17th Army until 25th Army has been transported to Chittagong.
17th Army: 10th Division is advancing and will attack NE of Silchar. 52nd and 53rd Divisions are advancing to the NE from Comilla, supported by 25th Army (18th Division).
4th and 21st Division: are advancing toward Imphal.
15th Army: reorganization until 15 July.
2nd Army: Southern Expeditionary Army's reserve force (24th and 25th Division). Singapore ETA is 6 days.

Combined Fleet:
KB1: made a port-attack on Madras (see above INT REP). Note: enemy had a CAP-trap over Madras (60-100 fighters) and Colombo (60 fighters).

dai-2 Senkansentai (Kongo and Haruna) is supporting KB1.
dai-1 Senkansentai (Nagato & Mutsu) near Rangoon.
dai-15 Suiraisentai: supporting transportation of 56th Division to Chittagong.
2nd Fleet: dai-2 Suiraisentai: at Chittagong: will bombard Diamond harbour.

3rd Air Army: will co-ordinate all air activities in NE India after arrival to Rangoon.
21st Air Flotilla, 3rd & 5th Air Division: Tezpur airfield was attacked. No enemy fighters encountered.

Losses:
Japanese aircraft
NIL.

Enemy aircraft
Hurricane IIc Trop: 5 damaged, 1 destroyed on ground
Lysander II: 1 destroyed on ground.

Note: during next 24H the main effort will be a major fighter sweep over Howrah.

Planned op:
16th Army operation II: Landing at Port Blair.
SANGOKUICHI SAKUSEN: 16th Army operation III.



CHINA EXPEDITIONARY ARMY

Enemy sitrep:
35+ fighters at Chungking.

Current op:
North China Army (1st, Mongol and 12th Armies): NIL.
China Exp Army (11th and 13th Armies): 11th Army will continue mopping-up operations around Ichang.
25th Air Flotilla: Hengyang airfield was attacked.

Planned op:
SANGOKUICHI SAKUSEN: the total conquest of China.



4th FLEET (Central Pacific)

Enemy sitrep:
NIL.

Current op:
NIL.

Planned op:
KATSUIRO SAKUSEN: third phase: New Caledonia and SE Port Moresby



SOUTHEAST AREA FLEET (New Guinea - South Pacific)

Enemy sitrep:
Enemy strongpoints are Port Moresby (75+ fighters) and Horn island. 20+ bombers (B-25) are based at Merauke.

Current op:
Buildup of air (lvl 4) and naval bases at: Shortland and Tulagi.
Buildup of air (lvl 4): Hansa Bay, Madang.

Planned op:
Buildup of air (lvl 4) and naval base at: Manus
KATSUIRO SAKUSEN: third phase: New Caledonia and SE Port Moresby



5th FLEET (North Pacific)

Enemy sitrep:
NIL.

Current op:
Garrison and airbase units are being deployed from Ominato to the Kurile islands and Karafuto.

Planned op:
NIL.



ASW and CONVOY COMMAND

Enemy sitrep:
Many enemy submarines spotted west of Rangoon and Victoria Point.
Three enemy submarines spotted near Karafuto.

Current ASW op and convoy movements:
AMBER: 1. Rangoon-Singapore: Losses: 1 PB (08 JULY), 1 AK (10 JULY).
GREEN: 2. Singapore to Japan: Losses: NIL
GREEN: 3. Borneo to Truk: Losses: NIL
GREEN: 4. Shanghai/Korea/Manchuko to Japan: Losses: NIL
AMBER: 5. Karafuto-Hokkaido to Honshu (Japan): Losses: 1 SC (09 JULY).

GREEN = no losses due to enemy action (last 10 days).
AMBER = minor losses due to enemy action (last 10 days).
RED = losses due to enemy action (last 10 days).

Planned ASW op:
Deploying ASW-air units to airfields North Borneo - Central Philippines.

[PT boat skipper]

GHQ REPORT

11 July 1942



SOUTHERN EXPEDITIONARY ARMY (Burma-Java-Ambon)

Enemy sitrep:
ALERT! enemy concentrated 200 fighters to Howrah airfield. Bad weather prevented the planned fighter sweep against Howrah.
ALERT! large convoy in the western Indian Ocean (off-map).

Current op:
INMON SAKUSEN: (see attached map below)
2nd Area Army: will assume tactical command of all ground units in NE India. Will arrive in Singapore in 48H.
16th Army: Three divisions (9th, 19th and 38th) are in forward defence positions IVO Silchar.
25th Army: IGD are reorganizing at Rangoon. 5th Division has been ordered to embark transports for Chittagong in 24H. 56th Division is at Chittagong and has been ordered to advance and join 18th Division. 18th Division is supporting 17th Army until 25th Army has been transported to Chittagong.
17th Army: 10th Division is advancing and will attack NE of Silchar. 52nd and 53rd Divisions are advancing, supported by 25th Army (18th Division).
4th and 21st Division: are advancing toward Imphal.
15th Army: reorganization until 15 July.
2nd Army: Southern Expeditionary Army's reserve force (24th and 25th Division). Singapore ETA is 5 days.

Combined Fleet:
KB1: providing distant cover to the transportation of 25th Army.
dai-2 Senkansentai (Kongo and Haruna) is supporting KB1.
dai-1 Senkansentai (Nagato & Mutsu) near Rangoon.
dai-15 Suiraisentai: supporting transportation of 25th Army to Chittagong.
2nd Fleet: dai-2 Suiraisentai: at Chittagong: bombarded Diamond harbour.

3rd Air Army: will co-ordinate all air activities in NE India after arrival to Rangoon.
21st Air Flotilla, 3rd & 5th Air Division: enemy recce regiment SE of Tezpur airfield was attacked. No enemy fighters encountered.

Losses:
Japanese aircraft
NIL.

Enemy aircraft
NIL.

Note: during next 24H the main effort will be offensive air operations.

Planned op:
16th Army operation II: Landing at Port Blair.
SANGOKUICHI SAKUSEN: 16th Army operation III.



CHINA EXPEDITIONARY ARMY

Enemy sitrep:
35+ fighters at Chungking.

Current op:
North China Army (1st, Mongol and 12th Armies): NIL.
China Exp Army (11th and 13th Armies): 11th Army will continue mopping-up operations around Ichang.
25th Air Flotilla: bad weather prevented air operations.

Planned op:
SANGOKUICHI SAKUSEN: the total conquest of China.



4th FLEET (Central Pacific)

Enemy sitrep:
Air recce was successfully conducted over Pearl harbor from Palmyra: 59 fighters, 24 bombers, 14 ships and nine ground units spotted. Note: no major concentration of enemy assets.

Current op:
NIL.

Planned op:
KATSUIRO SAKUSEN: third phase: New Caledonia and SE Port Moresby



SOUTHEAST AREA FLEET (New Guinea - South Pacific)

Enemy sitrep:
Enemy strongpoints are Port Moresby (75+ fighters) and Horn island. 20+ bombers (B-25) are based at Merauke.

Current op:
Buildup of air (lvl 4) and naval bases at: Shortland and Tulagi.
Buildup of air (lvl 4): Hansa Bay, Madang.

Planned op:
Buildup of air (lvl 4) and naval base at: Manus
KATSUIRO SAKUSEN: third phase: New Caledonia and SE Port Moresby



5th FLEET (North Pacific)

Enemy sitrep:
NIL.

Current op:
Garrison and airbase units are being deployed from Ominato to the Kurile islands and Karafuto.

Planned op:
NIL.



ASW and CONVOY COMMAND

Enemy sitrep:
Many enemy submarines spotted west of Rangoon and Victoria Point.
One enemy submarine spotted near Karafuto.

Current ASW op and convoy movements:
AMBER: 1. Rangoon-Singapore: Losses: 1 PB (08 JULY), 1 AK (10 JULY).
GREEN: 2. Singapore to Japan: Losses: NIL
GREEN: 3. Borneo to Truk: Losses: NIL
GREEN: 4. Shanghai/Korea/Manchuko to Japan: Losses: NIL
AMBER: 5. Karafuto-Hokkaido to Honshu (Japan): Losses: 1 SC (09 JULY).

GREEN = no losses due to enemy action (last 10 days).
AMBER = minor losses due to enemy action (last 10 days).
RED = losses due to enemy action (last 10 days).

Planned ASW op:
Deploying ASW-air units to airfields North Borneo - Central Philippines.

[PT boat skipper]

INCIDENT REPORT

11 July 1942

TO: SOUTHEAST AREA FLEET

FROM: TRUK BASE COMMANDER

TEXT: Due to unfortunate circumstances the four SSX minisubs at Truk have suffered major damage.

Details:
SSX Ha-6 and Ha-5 damaged after hitting uncharted rocks.
SSX Ha-4 damaged after running aground.
SSX Ha-3 damaged after battery explosion.

Actions taken:
Repairs will be completed in two weeks.

END

[PT boat skipper]

GHQ REPORT

12 July 1942



SOUTHERN EXPEDITIONARY ARMY (Burma-Java-Ambon)

Enemy sitrep:
ALERT! enemy concentrated 220+ fighters to Howrah airfield. Note: no offensive air mission by enemy during last 24H.
ALERT! one unidentified major ground unit at Tezpur. Note: enemy reserve division in the process of disembarking from trains?
Another unidentified enemy ground unit spotted by air recce at Imphal. Note: another reserve unit?

Current op:
INMON SAKUSEN:
2nd Area Army: will assume tactical command of all ground units in NE India. Will arrive in Singapore in 24H.
16th Army: Three divisions (9th, 19th and 38th) are in forward defence positions IVO Silchar.
25th Army: IGD is reorganizing at Rangoon. 5th Division is on-board transports bound for Chittagong. 56th Division is advancing IOT join 18th Division. 18th Division is advancing and protecting LoC to 17th Army.
17th Army: 10th Division is advancing and will attack NE of Silchar. 52nd and 53rd Divisions are advancing.
4th and 21st Division: are advancing toward Imphal.
15th Army: reorganization extended until 25 July.
2nd Army: Southern Expeditionary Army's reserve force (24th and 25th Division). Singapore ETA is 4 days.

Combined Fleet:
KB1: providing distant cover to the transportation of 25th Army.
dai-2 Senkansentai (Kongo and Haruna) is supporting KB1.
dai-1 Senkansentai (Nagato & Mutsu) near Rangoon.
dai-15 Suiraisentai: supporting transportation of 25th Army to Chittagong.
2nd Fleet: dai-2 Suiraisentai: at Chittagong.

3rd Air Army: will co-ordinate all air activities in NE India after arrival to Rangoon. Note: air-transport will be provided from Bangkok.
21st Air Flotilla, 3rd & 5th Air Division: very bad weather, however, Tezpur airfield was attacked and damaged. No enemy fighters encountered.

Losses:
Japanese aircraft
One elite pilot killed in landing accident of A6M2 Zero from 3rd Ku S-1 at Chittagong.

Enemy aircraft
NIL.

Note: during next 24H the main effort will be offensive air operations.

Planned op:
16th Army operation II: Landing at Port Blair.
SANGOKUICHI SAKUSEN: 16th Army operation III.



CHINA EXPEDITIONARY ARMY

Enemy sitrep:
40 fighters at Chungking.

Current op:
North China Army (1st, Mongol and 12th Armies): NIL.
China Exp Army (11th and 13th Armies): 11th Army will continue mopping-up operations around Ichang.
25th Air Flotilla: Changteh airfield was attacked and damaged.

Planned op:
SANGOKUICHI SAKUSEN: the total conquest of China.



4th FLEET (Central Pacific)

Enemy sitrep:
NIL.

Current op:
NIL.

Planned op:
KATSUIRO SAKUSEN: third phase: New Caledonia and SE Port Moresby



SOUTHEAST AREA FLEET (New Guinea - South Pacific)

Enemy sitrep:
Enemy strongpoints are Port Moresby (75+ fighters) and Horn island (20+ fighters). 20+ bombers (B-25) are based at Merauke.

Current op:
Buildup of air (lvl 4) and naval bases at: Shortland and Tulagi.
Buildup of air (lvl 4): Hansa Bay, Madang.

Planned op:
Buildup of air (lvl 4) and naval base at: Manus
KATSUIRO SAKUSEN: third phase: New Caledonia and SE Port Moresby



5th FLEET (North Pacific)

Enemy sitrep:
NIL.

Current op:
Garrison and airbase units are being deployed from Ominato to the Kurile islands and Karafuto.

Planned op:
NIL.



ASW and CONVOY COMMAND

Enemy sitrep:
Many enemy submarines spotted west of Rangoon and Victoria Point.
Three enemy submarines spotted near south-eastern shore of Karafuto.
Several enemy submarines spotted in Truk-Rabaul area.

Current ASW op and convoy movements:
AMBER: 1. Rangoon-Singapore: Losses: 1 PB (08 JULY), 1 AK (10 JULY).
GREEN: 2. Singapore to Japan: Losses: NIL
GREEN: 3. Borneo to Truk: Losses: NIL
GREEN: 4. Shanghai/Korea/Manchuko to Japan: Losses: NIL
AMBER: 5. Karafuto-Hokkaido to Honshu (Japan): Losses: 1 SC (09 JULY).

GREEN = no losses due to enemy action (last 10 days).
AMBER = minor losses due to enemy action (last 10 days).
RED = losses due to enemy action (last 10 days).

Planned ASW op:
Deploying ASW-air units to airfields North Borneo - Central Philippines.

[PT boat skipper]

GHQ REPORT

13 July 1942



SOUTHERN EXPEDITIONARY ARMY (Burma-Java-Ambon)

Enemy sitrep:
ALERT!160+ fighters at Howrah airfield. Enemy attacked the vanguard (2x recce-Bn) of 17th Army and lost many aircraft in air battles (see below).
255th Armoured Brigade at Tezpur, advancing to the SW.
1st Indian Light AA Regiment at Imphal.

Current op:
INMON SAKUSEN:
2nd Area Army: in Singapore, will assume tactical command of all ground units in NE India.
16th Army: Three divisions (9th, 19th and 38th) are in forward defence positions IVO Silchar.
25th Army: IGD is reorganizing at Rangoon. 5th Division will arrive to Chittagong in 24H. 56th Division is advancing IOT join 18th Division. 18th Division is advancing and protecting LoC to 17th Army.
17th Army: 10th Division is advancing and will attack NE of Silchar. 52nd and 53rd Divisions are advancing. Recce-Bn reached river two hexes SW Rangpur.
4th and 21st Division: are advancing toward Imphal.
15th Army: reorganization extended until 25 July.
2nd Army: Southern Expeditionary Army's reserve force (24th and 25th Division). Singapore ETA is 3 days.

Combined Fleet:
KB1: providing distant cover to the transportation of 25th Army.
dai-2 Senkansentai (Kongo and Haruna) is supporting KB1.
dai-1 Senkansentai (Nagato & Mutsu) near Rangoon.
dai-15 Suiraisentai: supporting transportation of 25th Army to Chittagong.
2nd Fleet: dai-2 Suiraisentai: at Chittagong.

3rd Air Army: will co-ordinate all air activities in NE India after arrival to Rangoon. Note: air-transport will be provided from Bangkok.
21st Air Flotilla, 3rd & 5th Air Division: Imphal airfield was attacked and damaged. Air battle over vanguard of 17th Army:

Losses:
Japanese aircraft
Ki-45 KAIa Nick: 5 destroyed
A6M2 Zero: 1 destroyed

Enemy aircraft
B-26 Marauder: 7 destroyed, 8 damaged
F4F-3 Wildcat: 5 destroyed

Note: during next 24H the main effort will be defensive air operations.

Planned op:
16th Army operation II: Landing at Port Blair.
SANGOKUICHI SAKUSEN: 16th Army operation III.



CHINA EXPEDITIONARY ARMY

Enemy sitrep:
45 fighters at Chungking.

Current op:
North China Army (1st, Mongol and 12th Armies): NIL.
China Exp Army (11th and 13th Armies): 11th Army will continue mopping-up operations around Ichang.
25th Air Flotilla: bad weather prevented any attacks.

Planned op:
SANGOKUICHI SAKUSEN: the total conquest of China.



4th FLEET (Central Pacific)

Enemy sitrep:
NIL.

Current op:
NIL.

Planned op:
KATSUIRO SAKUSEN: third phase: New Caledonia and SE Port Moresby



SOUTHEAST AREA FLEET (New Guinea - South Pacific)

Enemy sitrep:
Enemy strongpoints are Port Moresby (80+ fighters) and Horn island (15+ fighters). 20+ bombers (B-25) are based at Merauke.

Current op:
Buildup of air (lvl 4) and naval bases at: Shortland and Tulagi.
Buildup of air (lvl 4): Hansa Bay, Madang.

Planned op:
Buildup of air (lvl 4) and naval base at: Manus
KATSUIRO SAKUSEN: third phase: New Caledonia and SE Port Moresby



5th FLEET (North Pacific)

Enemy sitrep:
NIL.

Current op:
Garrison and airbase units are being deployed from Ominato to the Kurile islands and Karafuto.

Planned op:
NIL.



ASW and CONVOY COMMAND

Enemy sitrep:
Many enemy submarines spotted west of Rangoon and Victoria Point.
Three enemy submarines spotted near south-eastern shore of Karafuto.
Several enemy submarines spotted in Truk-Rabaul area.

Current ASW op and convoy movements:
AMBER: 1. Rangoon-Singapore: Losses: 1 PB (08 JULY), 1 AK (10 JULY).
GREEN: 2. Singapore to Japan: Losses: NIL
AMBER: 3. Borneo to Truk: Losses: 1 TK (13 July).
GREEN: 4. Shanghai/Korea/Manchuko to Japan: Losses: NIL
AMBER: 5. Karafuto-Hokkaido to Honshu (Japan): Losses: 1 SC (09 JULY).

GREEN = no losses due to enemy action (last 10 days).
AMBER = minor losses due to enemy action (last 10 days).
RED = losses due to enemy action (last 10 days).

Planned ASW op:
Deploying ASW-air units to airfields North Borneo - Central Philippines.

[PT boat skipper]

GHQ REPORT

14 July 1942



SOUTHERN EXPEDITIONARY ARMY (Burma-Java-Ambon)

Enemy sitrep:
ALERT! Enemy is deploying reserve units to Tezpur (see sitmap below).
ALERT! 120+ fighters at Tezpur airfield. Enemy fighter activity above 17th Army recce units. No air-to-ground attacks.

Current op:
INMON SAKUSEN:
2nd Area Army: in Singapore, will assume tactical command of all ground units in NE India.
16th Army: Three divisions (9th, 19th and 38th) are in forward defence positions IVO Silchar.
25th Army: IGD is reorganizing at Rangoon. 5th Division will disembark at Chittagong during the next 24H. 56th Division is advancing IOT join 18th Division. 18th Division is advancing and protecting LoC to 17th Army.
17th Army: 10th Division is advancing and will attack NE of Silchar. 52nd and 53rd Divisions are advancing to the NE.
4th and 21st Division: are advancing toward Imphal.
15th Army: reorganization extended until 25 July.
2nd Army: Southern Expeditionary Army's reserve force (24th and 25th Division). Singapore ETA is 48H.

Combined Fleet:
KB1: will withdraw for refuelling and refitting of air groups.
dai-2 Senkansentai (Kongo and Haruna) is supporting KB1.
dai-1 Senkansentai (Nagato & Mutsu) near Rangoon.
dai-15 Suiraisentai: supporting transportation of 25th Army to Chittagong.
2nd Fleet: dai-2 Suiraisentai: at Chittagong.

3rd Air Army: will co-ordinate all air activities in NE India after arrival to Rangoon. Note: air-transport will be provided from Bangkok.
21st Air Flotilla, 3rd & 5th Air Division: Silchar airfield and enemy ground units at Silchar were attacked. No enemy fighters defended.

Losses:
Japanese aircraft
Ki-48-IIa Lily: 1 destroyed by flak
Ki-21-IIa Sally: 1 destroyed by flak

Enemy aircraft
NIL

Note: during next 24H the main effort will be offensive air operations.

Planned op:
16th Army operation II: Landing at Port Blair.
SANGOKUICHI SAKUSEN: 16th Army operation III.



CHINA EXPEDITIONARY ARMY

Enemy sitrep:
45 fighters at Chungking.

Current op:
North China Army (1st, Mongol and 12th Armies): NIL.
China Exp Army (11th and 13th Armies): 11th Army will continue mopping-up operations around Ichang.
25th Air Flotilla: Hengyang airfield was attacked.

Planned op:
SANGOKUICHI SAKUSEN: the total conquest of China.



4th FLEET (Central Pacific)

Enemy sitrep:
NIL.

Current op:
NIL.

Planned op:
KATSUIRO SAKUSEN: third phase: New Caledonia and SE Port Moresby



SOUTHEAST AREA FLEET (New Guinea - South Pacific)

Enemy sitrep:
ALERT! there have been notable enemy radio traffic in area Brisbane - New Caledonia. Note: 3rd phase of KATSUIRO SAKUSEN will be discussed in a GHQ conference directly after the monthly GHQ report (19 July).
Enemy strongpoints are Port Moresby (80+ fighters) and Horn island (15+ fighters). 20+ bombers (B-25) are based at Merauke.

Current op:
Buildup of air (lvl 4) and naval bases at: Shortland and Tulagi.
Buildup of air (lvl 4): Hansa Bay, Madang.

Planned op:
Buildup of air (lvl 4) and naval base at: Manus
KATSUIRO SAKUSEN: third phase: New Caledonia and SE Port Moresby



5th FLEET (North Pacific)

Enemy sitrep:
NIL.

Current op:
Garrison and airbase units are being deployed from Ominato to the Kurile islands and Karafuto.

Planned op:
NIL.



ASW and CONVOY COMMAND

Enemy sitrep:
Many enemy submarines spotted west of Rangoon and Victoria Point.
One enemy submarine spotted southeast of Hokkaido.

Current ASW op and convoy movements:
AMBER: 1. Rangoon-Singapore: Losses: 1 PB (08 JULY), 1 AK (10 JULY).
GREEN: 2. Singapore to Japan: Losses: NIL
AMBER: 3. Borneo to Truk: Losses: 1 TK (13 July).
GREEN: 4. Shanghai/Korea/Manchuko to Japan: Losses: NIL
AMBER: 5. Karafuto-Hokkaido to Honshu (Japan): Losses: 1 SC (09 JULY).

GREEN = no losses due to enemy action (last 10 days).
AMBER = minor losses due to enemy action (last 10 days).
RED = losses due to enemy action (last 10 days).

Planned ASW op:
Deploying ASW-air units to airfields North Borneo - Central Philippines.

[PT boat skipper]

GHQ REPORT

15 July 1942



SOUTHERN EXPEDITIONARY ARMY (Burma-Java-Ambon)

Enemy sitrep:
ALERT! Enemy is deploying reserve units to Tezpur and Rangpur. 19th Indian Division identified at Rangpur. Air recce reports movement to the SE from Rangpur. Furthermore, radio intelligence indicate possible preparation for attacking SW of Tezpur.
ALERT! 120+ fighters at Tezpur airfield. Still no air-to-ground attacks against our advancing ground units.
One AMC (Hokoku Maru) in the Indian ocean reported that its search aircraft has spotted an enemy tanker convoy heading west from Perth.

Current op:
INMON SAKUSEN:
2nd Area Army: in Singapore, will assume tactical command of all ground units in NE India.
16th Army: Three divisions (9th, 19th and 38th) are in forward defence positions IVO Silchar.
25th Army: IGD is reorganizing at Rangoon. 5th Division has disembarked at Chittagong and has been ordered to advance. 56th Division is advancing IOT join 18th Division. 18th Division is advancing and protecting LoC to 17th Army.
17th Army: 10th Division is advancing and will attack NE of Silchar. 52nd and 53rd Divisions are advancing to the NE.
4th and 21st Division: are advancing toward Imphal.
15th Army: reorganization extended until 25 July.
2nd Army: Southern Expeditionary Army's reserve force (24th and 25th Division). Singapore ETA is 24H.

Combined Fleet:
KB1: will withdraw for refuelling and refitting of air groups.
dai-2 Senkansentai (Kongo and Haruna) is supporting KB1.
dai-1 Senkansentai (Nagato & Mutsu) near Rangoon.
dai-15 Suiraisentai: supporting transportation of 25th Army to Chittagong.
2nd Fleet: dai-2 Suiraisentai: at Chittagong.

3rd Air Army: will co-ordinate all air activities in NE India after arrival to Rangoon. Note: air-transport will be provided from Bangkok.
21st Air Flotilla, 3rd & 5th Air Division: enemy ground units (19th Indian Division) at Rangpur were attacked. No enemy fighters defended.

Losses:
Japanese aircraft
Ki-45 KAIa Nick: 1 destroyed by flak
Ki-21-IIa Sally: 1 destroyed by flak

Enemy aircraft
NIL

Note: during next 24H the main effort will be offensive air operations.

Planned op:
16th Army operation II: Landing at Port Blair.
SANGOKUICHI SAKUSEN: 16th Army operation III.



CHINA EXPEDITIONARY ARMY

Enemy sitrep:
45 fighters at Chungking.

Current op:
North China Army (1st, Mongol and 12th Armies): NIL.
China Exp Army (11th and 13th Armies): 11th Army will continue mopping-up operations around Ichang.
25th Air Flotilla: Changsha airfield was attacked and was severely damaged.

Planned op:
SANGOKUICHI SAKUSEN: the total conquest of China.



4th FLEET (Central Pacific)

Enemy sitrep:
ALERT! enemy TF spotted north of Baker island. Note: most likely a cruiser TF looking for supply convoys to Xmas/Palmyra.

Current op:
NIL.

Planned op:
KATSUIRO SAKUSEN: third phase: New Caledonia and SE Port Moresby



SOUTHEAST AREA FLEET (New Guinea - South Pacific)

Enemy sitrep:
ALERT! Increasing enemy radio traffic in area Brisbane - New Caledonia. Note: 3rd phase of KATSUIRO SAKUSEN will be discussed in a GHQ conference directly after the monthly GHQ report (19 July).
Enemy strongpoints are Port Moresby (80+ fighters) and Horn island (15+ fighters). 20+ bombers (B-25) are based at Merauke.

Current op:
Buildup of air (lvl 4) and naval bases at: Shortland and Tulagi.
Buildup of air (lvl 4): Hansa Bay, Madang.

Planned op:
Buildup of air (lvl 4) and naval base at: Manus
KATSUIRO SAKUSEN: third phase: New Caledonia and SE Port Moresby



5th FLEET (North Pacific)

Enemy sitrep:
NIL.

Current op:
Garrison and airbase units are being deployed from Ominato to the Kurile islands and Karafuto.

Planned op:
NIL.



ASW and CONVOY COMMAND

Enemy sitrep:
Many enemy submarines spotted west of Rangoon and Victoria Point.
One enemy submarine spotted southeast of Hokkaido.
One enemy submarine spotted south of Kyushu.

Current ASW op and convoy movements:
AMBER: 1. Rangoon-Singapore: Losses: 1 PB (08 JULY), 1 AK (10 JULY).
GREEN: 2. Singapore to Japan: Losses: NIL
AMBER: 3. Borneo to Truk: Losses: 1 TK (13 July).
GREEN: 4. Shanghai/Korea/Manchuko to Japan: Losses: NIL
AMBER: 5. Karafuto-Hokkaido to Honshu (Japan): Losses: 1 SC (09 JULY).

GREEN = no losses due to enemy action (last 10 days).
AMBER = minor losses due to enemy action (last 10 days).
RED = losses due to enemy action (last 10 days).

Planned ASW op:
Deploying ASW-air units to airfields North Borneo - Central Philippines.

[PT boat skipper]

GHQ REPORT

16 July 1942



SOUTHERN EXPEDITIONARY ARMY (Burma-Java-Ambon)

Enemy sitrep:
ALERT! four enemy units moved SE from Rangpur to 17th Army target hex. Additionally, one unit from Tezpur moved one hex to the NV. Air recce reports further movement to the SE from Rangpur.
ALERT! enemy commits most of his air force - major air battle over Rangpur (see below).
Furthermore, all available bombers (120 medium, 20 heavy) attacked 17th Army from high altitude.

Current op:
INMON SAKUSEN:
2nd Area Army: in Singapore, will assume tactical command of all ground units in NE India.
16th Army: Three divisions (9th, 19th and 38th) are in forward defence positions IVO Silchar.
25th Army: IGD is reorganizing at Rangoon and has received warning order to embark shipping for Chittagong. 5th, 56th and 18th Divisions are advancing and protecting LoC to 17th Army.
17th Army: 10th Division will attack NE of Silchar. 52nd and 53rd Divisions are advancing to the NE.
4th and 21st Division: are advancing toward Imphal.
15th Army: reorganization extended until 25 July.
2nd Army: Southern Expeditionary Army's reserve force (24th and 25th Division) will finish disembarking at Singapore in 24H.

Combined Fleet:
KB1: will withdraw for refuelling and refitting of air groups.
dai-2 Senkansentai (Kongo and Haruna) is supporting KB1.
dai-1 Senkansentai (Nagato & Mutsu) near Rangoon.
dai-15 Suiraisentai: supporting transportation of 25th Army to Chittagong.
2nd Fleet: dai-2 Suiraisentai: at Chittagong.

3rd Air Army: will co-ordinate all air activities in NE India after arrival to Rangoon. Note: air-transport will be provided from Bangkok.
21st Air Flotilla, 3rd & 5th Air Division: enemy ground units (254th Armoured Brigade) at Rangpur were attacked. Many enemy fighters defended.

Losses:
Japanese aircraft
Ki-43-Ic Oscar: 14 destroyed
Ki-21-IIa Sally: 7 destroyed, 9 damaged


Enemy aircraft
P-40E Warhawk: 4 destroyed
F4F-4 Wildcat: 1 destroyed
P-39D Airacobra: 1 destroyed


Note: during next 24H the main effort will be offensive air operations.

Planned op:
16th Army operation II: Landing at Port Blair.
SANGOKUICHI SAKUSEN: 16th Army operation III.



CHINA EXPEDITIONARY ARMY

Enemy sitrep:
45 fighters at Chungking.

Current op:
North China Army (1st, Mongol and 12th Armies): NIL.
China Exp Army (11th and 13th Armies): 11th Army will continue mopping-up operations around Ichang.
25th Air Flotilla: Changsha airfield was attacked again and was severely damaged.

Planned op:
SANGOKUICHI SAKUSEN: the total conquest of China.



4th FLEET (Central Pacific)

Enemy sitrep:
No signs of enemy TF spotted yesterday north of Baker island.

Current op:
NIL.

Planned op:
KATSUIRO SAKUSEN: third phase: New Caledonia and SE Port Moresby



SOUTHEAST AREA FLEET (New Guinea - South Pacific)

Enemy sitrep:
Enemy strongpoints are Port Moresby (80+ fighters) and Horn island (15+ fighters). 15+ bombers (B-25) are based at Merauke.

Current op:
Buildup of air (lvl 4) and naval bases at: Shortland and Tulagi.
Buildup of air (lvl 4): Hansa Bay, Madang.

Planned op:
Buildup of air (lvl 4) and naval base at: Manus
KATSUIRO SAKUSEN: third phase: New Caledonia and SE Port Moresby



5th FLEET (North Pacific)

Enemy sitrep:
NIL.

Current op:
Garrison and airbase units are being deployed from Ominato to the Kurile islands and Karafuto.

Planned op:
NIL.



ASW and CONVOY COMMAND

Enemy sitrep:
Many enemy submarines spotted west of Rangoon and Victoria Point.
Several enemy submarine spotted northeast and southeast of Hokkaido.

Current ASW op and convoy movements:
AMBER: 1. Rangoon-Singapore: Losses: 1 PB (08 JULY), 1 AK (10 JULY).
GREEN: 2. Singapore to Japan: Losses: NIL
AMBER: 3. Borneo to Truk: Losses: 1 TK (13 July).
GREEN: 4. Shanghai/Korea/Manchuko to Japan: Losses: NIL
AMBER: 5. Karafuto-Hokkaido to Honshu (Japan): Losses: 1 SC (09 JULY).

GREEN = no losses due to enemy action (last 10 days).
AMBER = minor losses due to enemy action (last 10 days).
RED = losses due to enemy action (last 10 days).

Planned ASW op:
Deploying ASW-air units to airfields North Borneo - Central Philippines.

[PT boat skipper]

GHQ REPORT

17 July 1942



SOUTHERN EXPEDITIONARY ARMY (Burma-Java-Ambon)

Enemy sitrep:
Two recce units in front of 17th Army were forced out from the forested hex SE Rangpur by enemy tank units.
Many enemy bombers (100 medium) again attacked 17th Army from high altitude.
Alert! one enemy TF (three APDs?) spotted at Darwin.

Current op:
INMON SAKUSEN:
2nd Area Army: in Singapore, will assume tactical command of all ground units in NE India.
16th Army: Three divisions (9th, 19th and 38th) are in forward defence positions IVO Silchar.

Enemy made a minor counter-attack on the west flank of 16th Army in the hilly area west of Tezpur:
Defensive ground combat at 58,37 (near Tezpur) - Allied Deliberate attack
Attacking enemy force 4853 troops, 70 guns, 165 vehicles, Assault Value = 198, adjusted assault: 90
Defending force 690 troops, 0 guns, 103 vehicles, Assault Value = 58, adjusted defense: 97, terrain(+), leaders(+)
Enemy assault odds: 1 to 2

Defending units: 5th Tank Regiment

Japanese ground losses: Vehicles lost 21 (6 destroyed, 15 disabled)

Assaulting enemy units:
16th Light Cavalry Regiment
26th Indian Brigade
2/13th Field Regiment

Enemy ground losses:
63 casualties reported
Squads: 1 destroyed, 10 disabled
Non Combat: 1 destroyed, 0 disabled
Engineers: 0 destroyed, 1 disabled
Vehicles lost 14 (3 destroyed, 11 disabled)

25th Army: IGD is reorganizing at Rangoon and has received warning order to embark shipping for Chittagong in 48H. 5th, 56th and 18th Divisions are advancing and protecting LoC to 17th Army.
17th Army: 52nd and 53rd Divisions are advancing to the NE. 10th Division attacked NE of Silchar:

Ground combat at 60,38 (near Silchar) - Japanese Shock attack
Attacking force 13415 troops, 124 guns, 42 vehicles, Assault Value = 513, adjusted assault: 534, shock(+)
Defending enemy force 7915 troops, 129 guns, 103 vehicles, Assault Value = 255, adjusted defense: 691, terrain(+), leaders(+), experience(-), supply(-)
Japanese assault odds: 1 to 2

Assaulting units:
9th Tank Regiment (did not participate in the attack)
10th Division

Japanese ground losses:
1477 casualties reported
Squads: 10 destroyed, 102 disabled
Non Combat: 1 destroyed, 2 disabled
Engineers: 0 destroyed, 14 disabled

Defending enemy units:
16th British Brigade
63rd Indian Brigade
IV Indian Corps
217th Coast AA Regiment

Allied ground losses:
279 casualties reported
Squads: 1 destroyed, 25 disabled
Non Combat: 2 destroyed, 3 disabled
Engineers: 0 destroyed, 0 disabled
Guns lost 14 (3 destroyed, 11 disabled)

The two recce units were forced to retreat near Rangpur:
Ground combat at 58,35 (near Rangpur) - enemy Deliberate attack

Attacking enemy force 6493 troops, 63 guns, 422 vehicles, Assault Value = 396, adjusted assault: 265
Defending force 2955 troops, 8 guns, 84 vehicles, Assault Value = 123, adjusted defense: 31, terrain(+), supply(-)
Enemy assault odds: 8 to 1

Defeated Japanese Units Retreating!
22nd Recon Regiment
56th Recon Regiment

Japanese ground losses:
1576 casualties reported
Squads: 46 destroyed, 73 disabled
Non Combat: 14 destroyed, 14 disabled
Engineers: 0 destroyed, 0 disabled
Guns lost 6 (2 destroyed, 4 disabled)
Vehicles lost 37 (17 destroyed, 20 disabled)
Units retreated 2

Assaulting enemy units:
150th RAC Regiment
254th Armoured Brigade
159th Mot Infantry Regiment
50th Tank Brigade

Enemy ground losses:
51 casualties reported
Squads: 0 destroyed, 12 disabled
Non Combat: 1 destroyed, 4 disabled
Engineers: 0 destroyed, 1 disabled

4th and 21st Division: are advancing toward Imphal.
15th Army: reorganization until 25 July.
2nd Army: Southern Expeditionary Army's reserve force (24th and 25th Division) at Singapore.

Combined Fleet:
KB1: refitting air groups.
dai-2 Senkansentai (Kongo and Haruna) is supporting KB1.
dai-1 Senkansentai (Nagato & Mutsu) near Rangoon.
dai-15 Suiraisentai: supporting transportation of 25th Army to Chittagong.
2nd Fleet: dai-2 Suiraisentai: at Chittagong.

3rd Air Army: will co-ordinate all air activities in NE India after arrival to Rangoon. Note: air-transport will be provided from Bangkok.
21st Air Flotilla, 3rd & 5th Air Division: 17th Army was supported. No enemy fighters encountered.

Losses:
Japanese aircraft
NIL


Enemy aircraft
NIL


Note: during next 24H the main effort will be offensive air operations.

Planned op:
16th Army operation II: Landing at Port Blair.
SANGOKUICHI SAKUSEN: 16th Army operation III.



CHINA EXPEDITIONARY ARMY

Enemy sitrep:
45 fighters at Chungking.

Current op:
North China Army (1st, Mongol and 12th Armies): NIL.
China Exp Army (11th and 13th Armies): 11th Army will continue mopping-up operations around Ichang.
25th Air Flotilla: Changsha airfield was attacked again and was damaged.

Planned op:
SANGOKUICHI SAKUSEN: the total conquest of China.



4th FLEET (Central Pacific)

Enemy sitrep:
Enemy TF spotted SE Canton island.

Current op:
NIL.

Planned op:
KATSUIRO SAKUSEN: third phase: New Caledonia and SE Port Moresby



SOUTHEAST AREA FLEET (New Guinea - South Pacific)

Enemy sitrep:
Enemy strongpoints are Port Moresby (80+ fighters) and Horn island (15+ fighters). 15+ bombers (B-25) are based at Merauke. There are air recce reports of two CL at Cookstown harbour.

Current op:
Buildup of air (lvl 4) and naval bases at: Shortland and Tulagi.
Buildup of air (lvl 4): Hansa Bay, Madang.

Planned op:
Buildup of air (lvl 4) and naval base at: Manus
KATSUIRO SAKUSEN: third phase: New Caledonia and SE Port Moresby



5th FLEET (North Pacific)

Enemy sitrep:
NIL.

Current op:
Garrison and airbase units are being deployed from Ominato to the Kurile islands and Karafuto.

Planned op:
NIL.



ASW and CONVOY COMMAND

Enemy sitrep:
Many enemy submarines spotted west of Rangoon and Victoria Point.
Several enemy submarine spotted northeast and southeast of Hokkaido.

Current ASW op and convoy movements:
AMBER: 1. Rangoon-Singapore: Losses: 1 PB (08 JULY), 1 AK (10 JULY).
GREEN: 2. Singapore to Japan: Losses: NIL
AMBER: 3. Borneo to Truk: Losses: 1 TK (13 July).
GREEN: 4. Shanghai/Korea/Manchuko to Japan: Losses: NIL
AMBER: 5. Karafuto-Hokkaido to Honshu (Japan): Losses: 1 SC (09 JULY).

GREEN = no losses due to enemy action (last 10 days).
AMBER = minor losses due to enemy action (last 10 days).
RED = losses due to enemy action (last 10 days).

Planned ASW op:
Deploying ASW-air units to airfields North Borneo - Central Philippines.

[PT boat skipper]

GHQ REPORT

18 July 1942



SOUTHERN EXPEDITIONARY ARMY (Burma-Java-Ambon)

Enemy sitrep:
Enemy bombers (60 medium) attacked recce units NE of 17th Army.


Current op:
INMON SAKUSEN:
2nd Area Army: in Singapore, will assume tactical command of all ground units in NE India.
16th Army: Three divisions (9th, 19th and 38th) are in forward defence positions IVO Silchar.
25th Army: IGD is reorganizing at Rangoon and has received warning order to embark shipping for Chittagong in 48H (delayed 24h). 5th, 56th and 18th Divisions are concentrating and protecting LoC to 17th Army.
17th Army: 52nd and 53rd Divisions are advancing to the E. 10th Division in position NE of Silchar.
4th and 21st Division: are advancing toward Imphal.
15th Army: reorganization until 25 July.
2nd Army: Southern Expeditionary Army's reserve force (24th and 25th Division) at Singapore.

Combined Fleet:
KB1: refitting air groups.
dai-2 Senkansentai (Kongo and Haruna) is supporting KB1.
dai-1 Senkansentai (Nagato & Mutsu) near Rangoon.
dai-15 Suiraisentai: will bombard Port Blair in 48H.
2nd Fleet: dai-2 Suiraisentai: at Chittagong.

3rd Air Army: will co-ordinate all air activities in NE India after arrival to Rangoon. Note: air-transport will be provided from Bangkok.
21st Air Flotilla, 3rd & 5th Air Division: 1st Tank Division was supported. No enemy fighters encountered.

Losses:
Japanese aircraft
Ki-21-IIa Sally: 1 destroyed by flak


Enemy aircraft
NIL


Note: during next 24H the main effort will be offensive air operations.

Planned op:
16th Army operation II: Landing at Port Blair.
SANGOKUICHI SAKUSEN: 16th Army operation III.



CHINA EXPEDITIONARY ARMY

Enemy sitrep:
50 fighters at Chungking.

Current op:
North China Army (1st, Mongol and 12th Armies): NIL.
China Exp Army (11th and 13th Armies): 11th Army will continue mopping-up operations around Ichang.
25th Air Flotilla: Bad weather prevented air operations.

Planned op:
SANGOKUICHI SAKUSEN: the total conquest of China.



4th FLEET (Central Pacific)

Enemy sitrep:
Enemy TF spotted SW Canton island.

Current op:
NIL.

Planned op:
KATSUIRO SAKUSEN: third phase: New Caledonia and SE Port Moresby



SOUTHEAST AREA FLEET (New Guinea - South Pacific)

Enemy sitrep:
Enemy strongpoints are Port Moresby (80+ fighters) and Horn island (15+ fighters). 20+ bombers (B-25) are based at Merauke. There are air recce reports of two CL at anchor at Portland roads (not Cooktown).

Current op:
Buildup of air (lvl 4) and naval bases at: Shortland and Tulagi.
Buildup of air (lvl 4): Hansa Bay, Madang.

Planned op:
Buildup of air (lvl 4) and naval base at: Manus
KATSUIRO SAKUSEN: third phase: New Caledonia and SE Port Moresby



5th FLEET (North Pacific)

Enemy sitrep:
NIL.

Current op:
Garrison and airbase units are being deployed from Ominato to the Kurile islands and Karafuto.

Planned op:
NIL.



ASW and CONVOY COMMAND

Enemy sitrep:
Many enemy submarines spotted west of Rangoon and Victoria Point.

Current ASW op and convoy movements:
RED: 1. Chittagong-Rangoon-Singapore: Losses: 1 PB (08 JULY), 1 AK (10 JULY), 1 PB and 1 E (18 JULY).
GREEN: 2. Singapore to Japan: Losses: NIL
AMBER: 3. Borneo to Truk: Losses: 1 TK (13 July).
GREEN: 4. Shanghai/Korea/Manchuko to Japan: Losses: NIL
AMBER: 5. Karafuto-Hokkaido to Honshu (Japan): Losses: 1 SC (09 JULY).

GREEN = no losses due to enemy action (last 10 days).
AMBER = minor losses due to enemy action (last 10 days).
RED = losses due to enemy action (last 10 days).

Note: due to many enemy submarines west of Rangoon all minor convoys will be cancelled (1).

Planned ASW op:
Deploying ASW-air units to airfields North Borneo - Central Philippines.

[PT boat skipper]

GHQ REPORT

19 July 1942



SOUTHERN EXPEDITIONARY ARMY (Burma-Java-Ambon)

Enemy sitrep:
ALERT! 40 enemy heavy bombers (B-17E) attacked Mandalay JAAF airfield. Note: very few fighters on CAP.
ALERT!2 enemy continue the attack on 16th Army's left flank against 1st Tank division.
ALERT!3 enemy 20th Indian Division reinforced frontline at 10th Division.
Enemy continue air attacks against recce units in front of 17th Army.

Current op:
INMON SAKUSEN:
2nd Area Army: in Singapore, will assume tactical command of all ground units in NE India. ETA departure is 7 days.
16th Army: Three divisions (9th, 19th and 38th) are in forward defence positions IVO Silchar.

Enemy attacked 1st Tank division (-) on 16th Army's left flank at 58,37 (near Tezpur):
Attacking enemy force 6875 troops, 87 guns, 360 vehicles, Assault Value = 344, adjusted assault: 148, fatigue(-)
Defending force 1675 troops, 26 guns, 225 vehicles, Assault Value = 104, adjusted defense: 133, terrain(+), leaders(+), disruption(-), fatigue(-)
experience(-)
Allied assault odds: 1 to 1

1st Tank division:
1st Tank Regiment
5th Tank Regiment
1st Mobile Field Artillery Regiment

Japanese ground losses:
Vehicles lost 20 (3 destroyed, 17 disabled)

Assaulting enemy units:
255th Armoured Brigade
16th Light Cavalry Regiment
26th Indian Brigade
2/13th Field Regiment

Enemy ground losses:
289 casualties reported
Squads: 2 destroyed, 31 disabled
Non Combat: 0 destroyed, 9 disabled
Engineers: 0 destroyed, 4 disabled
Vehicles lost 46 (3 destroyed, 43 disabled)

25th Army: IGD at Rangoon has been ordered to embark shipping for Chittagong in 24H. 5th, 56th and 18th Divisions are concentrating and protecting LoC to 17th Army.
17th Army: 52nd and 53rd Divisions are advancing to the E. 10th Division in position NE of Silchar.
4th and 21st Division: are advancing toward Imphal.
15th Army: reorganization until 25 July.
2nd Army: Southern Expeditionary Army's reserve force (24th and 25th Division) at Singapore.

Combined Fleet:
KB1: refitting air groups.
dai-2 Senkansentai (Kongo and Haruna) is supporting KB1.
dai-1 Senkansentai (Nagato & Mutsu) near Rangoon.
dai-15 Suiraisentai: will bombard Port Blair in 24H.
2nd Fleet: dai-2 Suiraisentai: at Chittagong.

3rd Air Army: will co-ordinate all air activities in NE India after arrival to Rangoon. Note: air-transport will be provided from Bangkok to Rangoon in 48H.
21st Air Flotilla, 3rd & 5th Air Division: bad weather prevented all planned air support to 1st Tank Division.

Losses:
Japanese aircraft
Ki-43-Ic Oscar: 2 destroyed on ground
Ki-21-IIa Sally: 8 destroyed on ground
Ki-48-IIa Lily: 2 destroyed on ground


Enemy aircraft
NIL


Note: during next 24H the main effort will be offensive air operations in support of 1st Tank division.

Planned op:
16th Army operation II: Landing at Port Blair.
SANGOKUICHI SAKUSEN: 16th Army operation III.



CHINA EXPEDITIONARY ARMY

Enemy sitrep:
ALERT! air recce reports that enemy moved 80+ fighters to Changsha airfield.
40 fighters at Chungking.

Current op:
North China Army (1st, Mongol and 12th Armies): NIL.
China Exp Army (11th and 13th Armies): 11th Army will continue mopping-up operations around Ichang.
25th Air Flotilla: Hengyang airfield was attacked and damaged.

Planned op:
SANGOKUICHI SAKUSEN: the total conquest of China.



4th FLEET (Central Pacific)

Enemy sitrep:
NIL.

Current op:
NIL.

Planned op:
KATSUIRO SAKUSEN: third phase: New Caledonia and SE Port Moresby



SOUTHEAST AREA FLEET (New Guinea - South Pacific)

Enemy sitrep:
Enemy strongpoints are Port Moresby (80+ fighters) and Horn island (15+ fighters). 20+ bombers (B-25) are based at Merauke.

Current op:
Buildup of air (lvl 4) and naval bases at: Shortland and Tulagi.
Buildup of air (lvl 4): Hansa Bay, Madang.

Planned op:
Buildup of air (lvl 4) and naval base at: Manus
KATSUIRO SAKUSEN: third phase: New Caledonia and SE Port Moresby



5th FLEET (North Pacific)

Enemy sitrep:
NIL.

Current op:
Garrison and airbase units are being deployed from Ominato to the Kurile islands and Karafuto.

Planned op:
NIL.



ASW and CONVOY COMMAND

Enemy sitrep:
Many enemy submarines spotted west of Rangoon and Victoria Point.

Current ASW op and convoy movements:
RED: 1. Chittagong-Rangoon-Singapore: Losses: 1 AK (10 JULY), 1 PB and 1 E (18 JULY).
GREEN: 2. Singapore to Japan: Losses: NIL
AMBER: 3. Borneo to Truk: Losses: 1 TK (13 July).
GREEN: 4. Shanghai/Korea/Manchuko to Japan: Losses: NIL
AMBER: 5. Karafuto-Hokkaido to Honshu (Japan): Losses: 1 SC (09 JULY).

GREEN = no losses due to enemy action (last 10 days).
AMBER = minor losses due to enemy action (last 10 days).
RED = losses due to enemy action (last 10 days).

Note: due to many enemy submarines west of Rangoon all minor convoys will be cancelled (1).

Planned ASW op:
Deploying ASW-air units to airfields North Borneo - Central Philippines.