Executive Summary
Ontong Java captured on 20th
Ketapang captured on 22nd
Mataram and Galeia captured on 23rd
20 Apr 42
Battleships bombard Malang:
Night Naval bombardment of Malang at 55,105
Japanese Ships
BB Hyuga
BB Fuso
BB Nagato
CA Nachi
CA Myoko
Allied ground losses:
454 casualties reported
Squads: 1 destroyed, 16 disabled
Non Combat: 3 destroyed, 39 disabled
Engineers: 0 destroyed, 0 disabled
Airbase hits 6
Airbase supply hits 4
Runway hits 22
Port hits 4
BB Hyuga firing at 6th KNIL Regiment
BB Nagato firing at 4th KNIL Regiment
SS S-39 exchanges fire with an xAK near Ruteng; sub scores 6 hits and takes 4
SS I-21 ventures into Port Moresby and takes 3 hits from a DD
21 Apr 42
BB Yamashiro arrives at Yokohama with 14 system, 31 major flotation, and 1 engine damage; requires 106 days in the yard to repair
22 Apr 42
A cruiser TF bombards Probolinggo on Java's north coast, while the battleships bombard Loemadjang on the south coast:
Night Naval bombardment of Probolinggo at 56,105
Japanese Ships
CA Mogami
CA Chokai
CA Tone
CL Tatsuta
CL Sendai
DD Akebono
DD Asagiri
DD Shinonome
DD Fubuki
DD Inazuma
DD Ikazuchi
DMS W-12
DMS W-10
Allied ground losses:
87 casualties reported
Squads: 0 destroyed, 0 disabled
Non Combat: 1 destroyed, 13 disabled
Engineers: 0 destroyed, 0 disabled
Manpower hits 1
Fires 429
Port hits 2
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Night Naval bombardment of Loemadjang at 56,106 - Coastal Guns Fire Back!
Allied aircraft
no flights
Allied aircraft losses
P-40E Warhawk: 9 damaged
P-40E Warhawk: 1 destroyed on ground
PBY-5 Catalina: 5 damaged
P-40E Warhawk: 8 damaged
P-40E Warhawk: 1 destroyed on ground
FK-51: 4 damaged
FK-51: 1 destroyed on ground
B-339D: 3 damaged
B-339D: 2 destroyed on ground
Japanese Ships
BB Hyuga
BB Fuso
BB Nagato
CA Nachi
CA Myoko
Allied ground losses:
330 casualties reported
Squads: 1 destroyed, 2 disabled
Non Combat: 9 destroyed, 37 disabled
Engineers: 0 destroyed, 2 disabled
Guns lost 14 (2 destroyed, 12 disabled)
Manpower hits 2
Fires 792
Airbase hits 7
Airbase supply hits 2
Runway hits 11
Port hits 4
Troops unload at Mataram and Galeia
Strategic bombing at Changsha meets P-40 CAP and takes heavy losses
23 Apr 42
SS Seadragon sinks an xAKL with supply for Balikpapan near Donggala
SS Grayling exchanges fire with an xAKL near Buna, scoring 6 hits while taking 2
24 Apr 42
1 Div departs Makassar for Haiphong
CA TF bombards Banjoewangi, while BB TF bombards Loemadjang:
Night Naval bombardment of Banjoewangi at 57,107
Japanese Ships
CA Mikuma
CA Mogami
CA Tone
CL Sendai
Allied ground losses:
104 casualties reported
Squads: 0 destroyed, 2 disabled
Non Combat: 2 destroyed, 8 disabled
Engineers: 0 destroyed, 0 disabled
CA Mogami firing at North Borneo Base Force
CA Tone firing at North Borneo Base Force
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Night Naval bombardment of Loemadjang at 56,106
Allied aircraft
no flights
Allied aircraft losses
B-339D: 2 damaged
B-339D: 1 destroyed on ground
P-40E Warhawk: 13 damaged
Hurricane IIb Trop: 2 damaged
FK-51: 1 damaged
FK-51: 1 destroyed on ground
P-40E Warhawk: 7 damaged
P-40E Warhawk: 1 destroyed on ground
PBY-5 Catalina: 1 destroyed on ground
Japanese Ships
BB Hyuga
BB Fuso
BB Nagato
CA Nachi
CA Myoko
Allied ground losses:
436 casualties reported
Squads: 1 destroyed, 1 disabled
Non Combat: 23 destroyed, 29 disabled
Engineers: 0 destroyed, 1 disabled
Guns lost 7 (4 destroyed, 3 disabled)
Manpower hits 1
Fires 309
Airbase hits 11
Airbase supply hits 2
Runway hits 10
Port hits 7
25 Apr 42
25 Army units moving from Soerabaja to Malang to resume attacks
CA and BB TF’s bombard Malang:
Night Naval bombardment of Malang at 55,105 - Coastal Guns Fire Back!
Allied aircraft
no flights
Allied aircraft losses
FK-51: 1 damaged
P-40E Warhawk: 6 damaged
Hurricane IIb Trop: 1 damaged
Hurricane IIb Trop: 1 destroyed on ground
CW-22 Falcon: 2 damaged
CW-22 Falcon: 1 destroyed on ground
Japanese Ships
CA Suzuya
CA Mikuma
CA Mogami
CA Chokai
CA Tone
CL Sendai
DD Akebono
DD Asagiri
DD Fubuki
DD Inazuma
DD Ikazuchi
DD Harusame
Allied ground losses:
405 casualties reported
Squads: 1 destroyed, 3 disabled
Non Combat: 9 destroyed, 35 disabled
Engineers: 1 destroyed, 0 disabled
Airbase hits 5
Airbase supply hits 8
Runway hits 26
Port hits 24
Port fuel hits 2
Port supply hits 4
CA Suzuya firing at Tjilitap Base Force
CA Mogami firing at Barisan KNIL Regiment
DD Akebono firing at 2nd KNIL Regiment
--------------------------------------------------------------------------------
Night Naval bombardment of Malang at 55,105
Allied aircraft
no flights
Allied aircraft losses
CW-22 Falcon: 1 damaged
B-339D: 3 damaged
P-40E Warhawk: 2 destroyed on ground
Japanese Ships
BB Hyuga
BB Fuso
BB Nagato
BB Haruna
CA Nachi
CA Myoko
CL Naka
DD Minegumo
DD Asashio
DD Hagikaze
DD Shiranui
DD Hayashio
DD Yukikaze
Allied ground losses:
342 casualties reported
Squads: 5 destroyed, 29 disabled
Non Combat: 12 destroyed, 55 disabled
Engineers: 1 destroyed, 1 disabled
Vehicles lost 1 (1 destroyed, 0 disabled)
Airbase hits 6
Airbase supply hits 6
Runway hits 26
Port hits 19
Port fuel hits 1
Port supply hits 1
BB Fuso firing at 4th KNIL Regiment
E13A1 Jake acting as spotter for BB Nagato
BB Nagato firing at 2nd KNIL Regiment
CA Nachi firing at 4th KNIL Regiment
CA Myoko firing at 6th KNIL Regiment
DD Yukikaze firing at 6th KNIL Regiment
Strategic bombing of Hengyang begins
26 Apr 42
Rabaul airfield reaches level 7
Battleships bombard Malang:
Night Naval bombardment of Malang at 55,105
Japanese Ships
BB Hyuga
BB Fuso
BB Nagato
BB Haruna
CA Mikuma
CA Mogami
CA Nachi
CA Myoko
CL Naka
CL Sendai
DD Inazuma
DD Ikazuchi
DD Minegumo
DD Asashio
DD Hagikaze
DD Shiranui
DD Hayashio
DD Yukikaze
Allied ground losses:
854 casualties reported
Squads: 7 destroyed, 14 disabled
Non Combat: 18 destroyed, 63 disabled
Engineers: 2 destroyed, 2 disabled
Airbase hits 6
Airbase supply hits 3
Runway hits 10
Port hits 10
Followed by a shock attack:
Ground combat at Malang (55,105)
Japanese Shock attack
Attacking force 64199 troops, 771 guns, 662 vehicles, Assault Value = 2135
Defending force 23036 troops, 288 guns, 61 vehicles, Assault Value = 567
Japanese engineers reduce fortifications to 0
Japanese adjusted assault: 506 – I don’t understand this at all !!
Allied adjusted defense: 463
Japanese assault odds: 1 to 1 (fort level 0)
Japanese Assault reduces fortifications to 0
Combat modifiers
Defender: terrain(+), preparation(-), experience(-)
Attacker: shock(+)
Japanese ground losses:
11574 casualties reported
Squads: 482 destroyed, 210 disabled [X(]
Non Combat: 25 destroyed, 18 disabled
Engineers: 25 destroyed, 32 disabled
Guns lost 90 (60 destroyed, 30 disabled)
Vehicles lost 31 (19 destroyed, 12 disabled)
Allied ground losses:
2637 casualties reported
Squads: 29 destroyed, 133 disabled
Non Combat: 3 destroyed, 53 disabled
Engineers: 1 destroyed, 5 disabled
Guns lost 28 (5 destroyed, 23 disabled)
Vehicles lost 35 (2 destroyed, 33 disabled)
Assaulting units:
Imperial Guards Division
56th Division
38th Division
1st Tank Regiment
5th Division
18th Division
6th Tank Regiment
3rd Ind. Mountain Gun Regiment
8th Medium Field Artillery Regiment
1st Hvy.Artillery Regiment
1st Medium Field Artillery Regiment
18th Medium Field Artillery Regiment
23rd Ind. Engineer Regiment
3rd Medium Field Artillery Regiment
1st RF Gun Battalion
Defending units:
4th KNIL Landstorm Battalion
6th KNIL Regiment
Van Altena Battalion
Marinier Battalion
4th KNIL Regiment
Lijfwacht Cav Sqn
Roodenburg Battalion
Prajoda Garrison Battalion
1st KNIL Landstorm Battalion
2nd KNIL Regiment
Barisan KNIL Regiment
1st KNIL Regiment
Afdeling Ritman
2nd KNIL Landstorm Battalion
West Borneo KNIL Battalion
KNIL Army Command
Tjilitap Base Force
As a result of this attack the Imperial Guard Division is out of action for some time while it reconstitutes. It will be moved to Singapore to do that so as not suck up supply on Java.
Carrier Zeroes sweep Adak, knocking down enough fighters to allow all but one Emily to get through with supply
27 Apr 42
Troops unload at Sampit, Taliaboe, and Woodlark Island
Strategic bombing of Hengyang continues
SS Swordfish puts 13 shells and a torpedo in an xAK near Makassar
Adak again resupplied by Emily's flying from Attu








