PT boat skipper
12 Mar 1942
SOUTHERN ARMY (Burma-Java-Ambon)
Major naval operation off Cocos island. Several AOs spotted one hex W Cocos island.
Sumatra; movements of ground forces from the south toward 5th Division.
TORA SAKUSEN-1: landing on Cocos island: 2nd Battleship Division (BB Kongo, RADM Tanaka R.) will move closer to Cocos island. In one week, assigned units will begin embarkation. KB1 and KB3 will also be in position in about one week.
TORA SAKUSEN-2: capture of Djambi oilfield: two regiments of the 5th Division has arrived at Benkolen, which will be attacked, and bombarded by battleships (1st Battleship Division) in 48H. The third regiment of the 5th Division is securing LoC, but failed (despite air support) to dislodge three enemy units that arrived from the southeast:
Ground combat at 46,91 (near Benkoelen) - Japanese Deliberate attack
Attacking force 3907 troops, 64 guns, 0 vehicles, Assault Value = 126
Defending force 4623 troops, 92 guns, 77 vehicles, Assault Value = 193
Japanese adjusted assault: 91
Enemy adjusted defense: 483
Japanese assault odds: 1 to 5
Defender: terrain(+), leaders(+), fatigue(-), experience(-)
Japanese ground losses:
261 casualties reported
Squads: 1 destroyed, 27 disabled
Non Combat: 0 destroyed, 2 disabled
Engineers: 0 destroyed, 0 disabled
Enemy ground losses:
43 casualties reported
Squads: 0 destroyed, 7 disabled
Non Combat: 0 destroyed, 3 disabled
Engineers: 0 destroyed, 1 disabled
11th Infantry Regiment
5th Field Artillery Regiment
Enemy defending units:
1st Regt Cavalerie
1st KNIL Regiment
2nd KNIL Regiment
Tomorrow, 3rd Air Division will provide massive air support to 5th Division.
Timor landing operation: Battle of Koepang. The 2nd attack will be launched in 48H.
15th ARMY Operation I: Conquest of Central Burma. 5th Air Division has disembarked at Bangkok, Thailand. The transportation TF is returning to Singapore and will then become Cocos island landing force (VADM IKUTA).
Establishment of safe convoy route and air patrol bases for ASW (Borneo-Philippines).
16th ARMY operation I: (to be named soon)(Supported by KB1/3).
25th ARMY operation I: Landing on Ceylon (Supported by KB1 and KB3)(CANCELLED due to events in China).
25th ARMY operation II: Landing at Port Blair (IGD, 5th Division, 18th Division)(postponed).
CHINA EXPEDITIONARY ARMY
Major ground operation ongoing east of Sian.
Major ground operation ongoing west of Henyang and at Siangtan.
Fighter units at Sian (60 P-40 fighter aircraft). Minor air battle over 37th Division.
The japanese army has suffered a major setback in China. China Expeditionary Army has ordered all armies to move into defensive positions. A command conference at GHQ in Tokyo will be held tonight regarding the future strategy regarding China. It will look into what is needed to totally defeat China. Because of this shameful defeat, there is no alternative; China will be the main focus for the IJA. Start date for the major operation is 6 June 1942 (tentative).
HOKUSHIN SAKUSEN (CANCELLED): The 41st Division has been destroyed. (The 41st Division will be reconstituted in one-two months and then assigned to garrison duties in China).
Attacking enemy force 35388 troops, 416 guns, 0 vehicles, Assault Value = 1848
Defending force 5520 troops, 81 guns, 31 vehicles, Assault Value = 18
Japanese ground losses:
5975 casualties reported
Squads: 109 destroyed, 0 disabled
Non Combat: 627 destroyed, 0 disabled
Engineers: 35 destroyed, 0 disabled
Guns lost 114 (114 destroyed, 0 disabled)
Vehicles lost 32 (32 destroyed, 0 disabled)
Units destroyed 1 (41st Division)
The operation by North China Army is now limited to reach and save the remaining 37th Division/1st Army, as well as taking and holding favourable terrain for immediate defense and future offensive operations. North China Army is planning to assign what is left of 1st Army to garrison duties. 12th Army and Mongol Army will take its place.
11th Army: the main force was (despite air support) forced to retreat from Siangtan taking heavy casualities.
Ground combat at Siangtan (81,52) - Allied Shock attack
Attacking enemy force 93881 troops, 598 guns, 0 vehicles, Assault Value = 3255, adjusted assault: 2500
Defending force 44112 troops, 431 guns, 42 vehicles, Assault Value = 1137, adjusted defense: 777
Allied assault odds: 3 to 1
Defender: leaders(+), preparation(-)
Japanese ground losses:
9399 casualties reported
Squads: 399 destroyed, 172 disabled
Non Combat: 361 destroyed, 170 disabled
Engineers: 67 destroyed, 18 disabled
Guns lost 107 (56 destroyed, 51 disabled)
Vehicles lost 9 (5 destroyed, 4 disabled)
Units retreated 4
Allied ground losses:
7474 casualties reported
Squads: 35 destroyed, 603 disabled
Non Combat: 55 destroyed, 82 disabled
Engineers: 55 destroyed, 57 disabled
Units destroyed 1
5th Construction Regiment
60th Chinese Corps
16th Construction Regiment
52nd Chinese Corps
59th Chinese Corps
58th Chinese Corps
45th Chinese Corps
6th Construction Regiment
87th Chinese Corps
94th Chinese Corps
44th Chinese Corps
73rd Chinese Corps
72nd Chinese Corps
4th Chinese Corps
10th Chinese Corps
5th Chinese Cavalry/C Corps
4th Heavy Mortar Regiment
13th Chinese Base Force
3rd Heavy Mortar Regiment
22nd Artillery Regiment
49th AA Regiment
Defending units (retreated to the southeast - into 13th Army´s strong defensive position):
The secondary force will move into Changsha in 24H IOT defend while the four battered divisions of 11th Army regroup for defensive positions further east.
13th Army: will continue to defend. Next enemy move will most likely be against 79,53 (west of Hengyang). The 22nd Division will defend while the 116th Division is withdrawing to the southeast. Akagi air group will provide fighter cover.
SIAN follow up. GHQ D&G: the priority is to take control of all Chinese oil facilities. CANCELLED
RYUUOU II: the total conquest of China (involving at least two armies from Southern Army; to advance from Indochina and Burma. The OPLAN will be revised - startdate of the operation is 6 June 1942 (tentative).
4th FLEET (Central Pacific)
Radio transmissions detected at Pago Pago and at Christmas Island (possible air movements?).
Suspected minesweeper spotted by Air Recce at Canton island.
Enemy sub at Baker island.
14th ARMY operation I: landing at Palmyra & Xmas island: The Palmyra and Xmas Landing TGs are underway with KB2 in support. LR Air Recce is located at Baker island.
Air units from 4th Air Division has disembarked at Truk.
14th ARMY operation III.
SOUTHEAST AREA FLEET (New Guinea - South Pacific)
Transportation of airfield construction unit to Rabaul - COMPLETED.
Buildup of air (lvl 4) and naval bases at: Madang and Tulagi.
14th ARMY operation II.
5th FLEET (North Pacific)
Radio transmissions detected at Adak Island (162,52) - an airfield is under construction.