The Battle of NàSản was fought between the French Union and the Viá»Ât Minh at NàSản, Sán La Province, during the First Indochina War for control of the TâÂÂai region in Northwest Vietnam. The battle ended with the victory of the French Union (France and State of Vietnam).
In the Fall of 1950, General Marcel Carpentier decided to withdraw all military forces from Hòa Bình, capital of the Muong region. In November 1951, General De Lattre, Carpentier's replacement, launched an offensive operation against the Viá»Ât Minh in Hòa Bình to reclaim an area he saw as vital for France's future in Indochina. According to De Lattre, capturing Hòa Bình would cut the enemy's supply line between Thanh Hóa and Viá»Ât Bắc. Psychologically, reclaiming the province would gain support from the Mðá»Âng, who had supported neither side, but were leaning more toward the Franco-Vietnamese side. In November 1951, De Lattre mobilized ten infantry and eight airborne battalions to mount a decisive operation. Võ Nguyên Giáp counterattacked with three regular divisions, two independent regiments, and regional support troops. The two sides fought hard for Hòa Bình. At the height of the Battle of Hòa Bình, Giáp had 40 battalions fighting his enemies at different locations throughout the province. In January 1952, French forces were winning when De Lattre had to return to France for cancer treatment and General Raoul Salan was appointed to take his place. Salan, who saw the province as an area that was hard to support and to defend, decided to withdraw his troops (Operation Amarante). On 22 February, French troops successfully withdrew from Hòa Bình and regrouped in Xuan Mai two days later.
Eight months after having successfully defended Hòa Binh, Giáp attacked Nghéa Lá» in the T'ai region which he failed to take a year earlier. Giáp used four regular divisions (308th, 312th, 316th and artillery division 351st) to attack the province's southeast and the regional regiment 148th to guard the northwest side against reinforcements. In 10 days, Viá»Ât Minh forces not only took Nghéa Lá» but also seized part of Sán La and Lai Châu from French control. To avoid further losses, Salan launched Operation Lorraine to relieve the Viá»Ât Minh pressure in the T'ai region and to serve as a diversion while NàSản was being built. The operation, led by General François de Linares, started on 9 November and lasted until 19 November. While the operation was going on, Salan tasked Colonel Jean Gilles with establishing an entrenched fire support base at NàSản to stop Giáp's offensive.
NàSản, located on Route Provinciale 41 (RP 41), was a valley of 2 km à1 km surrounded by 24 hills that could serve as natural defense positions. In early October 1952, there was a single outpost and a short airstrip, both guarded by a company under the command of a non-commissioned officer. Salan used the Hanoi-based French Air Force Dakotas to transport troops and material there in order to complete a fortified "base aero-terrestre" or air-land base allowing a direct confrontation with the Viá»Ât Minh divisions.
During the battle, Gilles used a new tactic, called "the hedgehog" (le hérisson), for the first time in Indochina. The hedgehog defense consisted of an outpost surrounded by several armed positions (point d'appui or P.A.). The objective was to provoke an enemy frontal assault, rather than fighting off hit-and-run attacks or falling into ambushes. NàSản's hedgehog consisted of 30 P.A. with a complicated trench system, enforced with barbed wires. Its defense forces consisted of 11 battalions (15,000 men) and 6 artillery batteries.
Lieutenant Colonel Paul Ducournau
Commandant Casso
General Võ Nguyên Giáp, Commander of the Tai region Campaign
Commander : Colonel Vðáng Thừa Và ©
Commander : Colonel Lê Trá»Âng Tấn
Commander : Colonel Lê Quảng Ba
On 23 November at 20:00 Viá»Ât Minh forces from the 88/308 twice attacked the 110 legionnaires of the 11th Company, Third Battalion, Fifth Foreign Infantry Reg at P.A. 8 and were twice pushed back by the entrenched Franco-Vietnamese troops, losing 64 killed.
From 24 to 30 November Viá»Ât Minh forces made night attacks on different points to test French defense. During the days, defending troops patrolled within their fire-support range for reconnaissance.
At 20:00 on 30 November, Viá»Ât Minh forces from nine battalions attacked P.A. 22 bis and 24, respectively located east and west of the entrenched headquarters. P.A. 22 bis, defended by a company of the 2nd Thai battalion (BT2) was overrun by the 115th battalion (165/312) after nine hours of relentless attacks, of the 225 men defending the P.A., only one squad was able to escape back to the airfield. At 03:00 after probing attacks the Viá»Ât Minh launched an intense attack on P.A. 24, the Moroccan tirailleurs with the II/6e RTM resisted three hours of constant attacks by the 102/308 before surrendering.
Gilles, who wanted to take back the two points so close to NàSản's headquarters, launched a counter-attack at dawn on 1 December. After a barrage of artillery fire, two companies of the 2e BEP stormed and took back 22 bis. After seven hard-fought hours, the 3e BPC took back P.A. 24. At 21:00, Giap's forces launched their all-out offensive at NàSản. Wave after wave of soldiers relentlessly assaulted several P.A.s, especially 21 bis and 26; sometimes the attackers outnumbered the defenders fifteen to one. All night, Dakotas dropped flares over the battlefields to give support troops visibility to defend the positions. Defending forces continuously fired their cannons into Viá»Ât Minh human waves while B-26s, Hellcats and Privateers dropped bombs and napalm onto enemy attack waves and positions. The battles raged on until mid-morning on 2 December when all attacks abruptly stopped, leaving behind an eerie silence.
On 4 December after nearly two weeks of trying to overrun NàSản, Giáp withdrew his troops. The French estimate Viet Minh suffered 1,544 dead and 1,932 wounded prisoners. The defending Franco-Vietnamese forces lost close to two battalions.
Despite the victory, France was looking for a political solution to get out of Indochina and NàSản was abandoned in August 1953. The tactician Gilles again outmaneuvered Giáp by evacuating the whole camp without a single loss. In "Ba sinh hðáng lá»Âa", Doan Quoc Sy quoted a Viá»Ât Minh officer with the forces surrounding NàSản, "The enemy withdrew without our knowledge ... until there was only one battalion left ... the enemy was able to escape and save its entire forces because of our poor military intelligence".
The hedgehog tactics earned the French a victory at NàSản. As a result, the hedgehog defense became standard practice, and was applied on a larger scale at ÃÂiá»Ân Biên Phủ. The French hoped that by repeating the strategy on a much larger scale, they would be able to lure Giáp into committing the bulk of his forces in a massed assault. This would enable superior French artillery, armour and air support to decimate the exposed Viet Minh forces.
After the battle, Giáp argued that the failure to overrun the base could not have been due to fatigue or because the units were no longer properly organized due to weeks of fighting. Giáp believed that the only possible justification was that the French âÂÂhedgehogâ was a new defensive class and, because his units had not come across such a cluster of entrenched camps before, they did not know how to destroy it. He noted that with the hedgehog, the French could exploit the fact that it was impossible for the Viá»Ât Minh to maintain a great number of combatants in the mountain and forest areas for a long time, because of the eventual shortage of food and limited means of transport. The French had only to wait for the Viá»Ât Minh to withdrawal, and then move from their cluster of entrenched camps to reoccupy the abandoned posts. The cluster of entrenched camps had become a new challenge for the advance of his army.
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