December 13th, 1941
Tonkin - The land battle is balanced. On the airfields of Bach Mai and Gia Lam, we are treating the wounds of the previous day's raid without wanting to think that it will soon be worse...
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Laos - If the situation is almost calm on the ground, it is not the same in the air. The presence of French gunboats prevent the Japanese forces from advancing, an air intervention is requested, and 15 Ki-51s escorted by 12 Ki-27s are actively hunting the ships on the Mekong. They are quickly intercepted by the two French protection patrols (12 aircraft). The 20 mm guns of the Moranes are merciless for the fragile Japanese machines and the attack is quickly disorganized, the dive-bombers dropping their projectiles at random to lighten their load. Three Type 99 Assault were shot down, as well as two fighters, at the cost of one MS-410 and two MS-406.
In the afternoon, the Japanese return in force. After having launched a bait of 4 Ki-27 in patrol, the other Nipponese, Ki-43 Hayabusa, engage the patrol of 4 MS-406.
One against five, the Morane pilots defend themselves with the energy of despair and succeed in shooting down four of their fragile opponents, but one MS-406, set on fire, crashes with its pilot and the three other planes, if they manage to break off the fight and to return, are riddled with bullets and unusable. This is the end of the MS-406 in Indochina, 14 months after their arrival.
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Cambodia - The French forces slowly retreat on both sides of the Tonle Sap lake in front of the Japanese-Thai attempts to force the passage. Protected by Hawk 75's which do not hesitate to empty their magazines on the ground troops at the end of the mission, Potez 63/11 and CAC-Wirraway harass the Japanese columns. But the latter demand air cover and at the end of the day, Ki-43s surprise a raid in progress and attack the French, their eyes turned towards the ground. Two H-75s, too low, crash into the jungle under the fire of the Japanese 12.7s. A furious battle ensues, but the light Hayabusas climb faster than the Curtisses, and in the hands of skilled and experienced pilots, they are the ones to rule.
Only the robustness of the American planes (and the reduced armament of the Ki-43s) allows them to hold on, but three of them are hit hard and barely make it back to Phnom Penh. A Potez is reported missing, and a Wirraway looks like a skimmer. Meager consolation: three Ki-43s (labeled Zero by the pilots, confusion is common) are certified, fallen under the eyes of the infantry.
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"Another hard day. No less than three missions, in protection of the Potez and the Wirraway ground attack aircraft. But it was exhilarating: as soon as our protégés were on their way back, empty, we would dive in turn to strafe the Japs on the ground. They were just coming out of the bushes and they quickly had to dive back in. The snag came on the third mission: the Japanese fighters intervened at that moment, and we got hit. As for me, with my ammunition exhausted, I had to pull out all the stops to escape from the Zeros, I had three of them on my ass! It was Roger who got me out of there by shooting one of them, which made the others run away, but my zinc is in bad shape, again. " (Pierre van Bielt, op. cit.)
Annam and Cochinchina - The situation is getting worse. The naval planes operating from Tourane join the IJAAF planes already present to pound the French forces.
At 0730 hours, 12 B5N1 Kate and 9 D3A1 Val attack Cam Ranh while 18 D3A1 escorted by as many A6M2 Zeros attack Tan-Son-Nhut (Saigon airfield).
At Cam Ranh, where no fighter aircraft oppose the attackers, new installations are demolished. The submarine Pégase, just back from patrol, is seriously damaged by two bombs and has to be beached. The oil tanker Garonne, already damaged on the 8th, is this time sent to the bottom. The two hydrographic ships armed as minesweepers La Pérouse and Astrolabe, as well as the barge Cam Ranh, are also on the list of hits of the Kate and the Val. More fortunately, the submarine supply ship Jules-Verne is only slightly damaged. Admiral Decoux decides to send it to Singapore*, as well as most of the ships still intact.
In addition to the Jules-Verne, which evacuates the crews of the submarines Pégase and Protée**, the large tug Valeureux and the minesweepers Armand Rousseau (AD347) and De Lanessan (AD304) leave during the night. The hydrographer Octant, twin of the Astrolabe, with boiler damage and unable to sail, is scuttled, as are the small tugs Cho Gao, Trian and Song Sau. The small tugs Donnaï, Nha Bé and Soirap, as well as the minesweeper Directeur Général Amé (AD319) - a 48-ton launch folded from Tourane - are sent to contribute to the defense of the Mekong.
The attack on Tan-Son-Nhut is even more deadly, as the allied fighters encounter, like the day before, the A6M2s, not only more agile, but faster than the Hawk-75A4 and even the Hurricane. Five Curtiss and four Hurricanes are shot down against only three Val and two Zero. Moreover, dive-bombing is much more accurate than horizontal bombing. Several aircraft were destroyed on the ground, including five Marylands from GB I/62. At 10:00, when the Lockheed 18 carrying the new High Commissioner lands at Tan-Son-Nhut, fires are still burning. "I see that it is time for political action to come to the rescue of military action," observes Jean Sainteny.
Before noon, Ki-51s and Ki-36s attack the coastal road several times to support the Japanese column on the march south.
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Faced with the threat of the planes based in Tourane, Colonel Pijeaud, after a discussion with the chief of the French Air Force in Indochina, Colonel Devèze, decides to entrust the Martin 167s based in Hanoi to carry out an interdiction mission against this airfield. At 13:00, a raid of nine planes of the GB II/62 is launched - without escort, because at this time, all the P-40s of the AVG available in Tonkin are busy defending Hanoi. This surprise raid does not meet any opposition but its success is limited: five aircraft destroyed on the ground and another one (a Ki-36) returning from a ground support mission shot down by the machine guns of two Marylands, while only two bombers are slightly damaged by flak; but there had been far fewer aircraft than had been expected. Indeed, the 12th and 3rd Kokutai had launched another raid, this time against Bin Dinh, which is severely shelled, while the columns of refugees on the coastal road are bombed and machine-gunned without mercy.
Against Devèze's advice, Pijeaud decides to launch a new raid in the afternoon.
As his colleague objects that the Japanese, alerted by the first attack, would probably have set up a fighter cover, Pijeaud replies that the bombers based in Hanoi are the only force capable of striking Tourane and that only the bombing of this base could reduce the enemy's air activity. Devèze reluctantly agrees and cannot even prevent Pijeaud from boarding the lead aircraft.
Fifteen Martin 167s are assembled (6 from GB II/62 and 9 from III/62).
Unfortunately, when the bombers arrive on Tourane at 17:00, they are welcomed by 12 A6M2 and 6 Ki-27 in fixed patrol to protect the passage by Tourane of the 14th Kokutai (36 D3A1 and 12 B5N1), which was going from China to Bangkok - Dong-Muang via Hainan and Tourane, escorted by 20 A6M2 of the 3rd Kokutai. Some of these Zeros, refueling at the airfield, take off and join the patrol to chase the French bombers. If the lightly armed Ki-27s are not very effective against the fast Martin 167s, the A6M2 guns make a massacre in the French formation. Nine bombers are shot down and five, including Pijeaud's, are seriously damaged and have to make a crash landing in Hue. The only plane able to return to Hanoi is also damaged. While defending themselves, the Marylands manage to shoot down two A6M2s and two Ki-27s, and their bombs destroy three D3A1s and a B5N1 on the ground. Very seriously burned, Colonel Pijeaud is taken to Hue hospital, from where he is transferred to Hanoi on the 14th by a Potez-29 CASEVAC, before dying on the 21st.
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At 18:30, the planes of the 14th and 3rd Kokutai take off from Tourane for Bangkok - Dong-Muang, where they land at 21:30.
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That evening, the allied fighters in Indochina are mainly represented by the pilots of the AVG. There are only seven Hurricanes and eight Hawk-75A4s in Cochinchina (plus two unavailable), eleven Hawk-75A4s (and 3 unavailable) in Phnom-Penh and, in Laos, twelve Morane MS-410 (and 4 unavailable). The bombers are 30 Glenn-Martin (plus 10 unavailable), of which twelve with the GB I/62 in Cochinchina and the eighteen others in Hanoi. The tactical support squadrons still have eleven Potez-63/11 (3 unavailable) and seven Wirraway (1 unavailable), mostly based in Laos. Twenty-one antique Potez 25 biplanes complete this order of battle. Fortunately, the AVG is in much better shape with 54 aircraft, of which 41 in fighting condition.
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At sunset, the Japanese enter the port of Binh Dinh, without any defense, and immediately continue their movement towards Qui Nhon. Rear Admiral Nishimura's squadron, which is heading towards Tourane, changes its route and enters the small port at 22:30.
The seaplane carriers Mizuho and Kamikawa Maru immediately start to unload equipment to transform the local civilian terrain (with a good grass runway of 1,500 meters, used before the war by D-338s and DC3s) into a temporary air base for the IJNAF. The two ships also land fuel and ammunition for a hydrobase for their 9 E13A1 Jake and 12 F1M2 Pete.
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In Saigon, an important conference brings together Sainteny, Decoux and the local military authorities.
* From there, it will travel to Fremantle, Australia.
** The crew of the Protée was flown from Haiphong to Saigon by the few remaining transport planes available, flying at night.