Military Wiki
Battle of the Bidassoa (1813)
Part of Peninsular War
La Rhune Neige.jpg
La Rhune, where the French repelled a Spanish attack.
Date7 October 1813
LocationNear Hendaye, France and La Rhune
Result Tactical Allied victory
France French Empire United Kingdom United Kingdom
Spain Spain
Commanders and leaders
France Nicolas Soult United Kingdom Marquess Wellington
62,000[1] 89,000[2]
Casualties and losses
1,650, 17 cannons[3] 1,600[4]

In the Battle of the Bidasoa (or the Battle of Larrun) on 7 October 1813 the Allied army of Arthur Wellesley, Marquess of Wellington wrested a foothold on French soil from Nicolas Soult's French army. The Allied troops overran the French lines behind the Bidassoa River on the coast and along the Pyrenees crest between the Bidasoa and La Rhune (Larrun). The nearest towns to the fighting are Irun on the lower Bidassoa and Bera on the middle Bidasoa. The battle occurred during the Peninsular War, part of the wider Napoleonic Wars.

Wellington aimed his main assault at the lower Bidasoa, while sending additional troops to attack Soult's center. Believing his coastal sector secure, Soult held the right flank with a relatively weak force while concentrating most of his strength on his left flank in the mountains. However, the British general obtained local intelligence that indicated that water levels on the lower river were much lower than the French suspected. After careful planning, Wellington launched a surprise assault which easily overran the French left flank defenses. In the center, his army also won through the French defenses, though his Spanish allies were repulsed in one attack. At the beginning of the fighting, Soult realized that his left flank was in no danger, but he reacted too late to restore his positions on the right. Some French generals were shocked at how poorly their soldiers fought.



In the Battle of San Marcial on 31 August and 1 September 1813, Soult's army was repelled in its final bid to advance into Spain. After a costly assault followed by a brutal sack of the city, the Allies also brought the Siege of San Sebastián to a successful conclusion in early September. A French garrison held out in the Siege of Pamplona which would end in a surrender on October 31. Wellington determined to create a bridgehead across the Bidassoa River. If successful, his army would be the first Allied army to establish itself on French soil. The British commander also wanted to capture French positions that overlooked the Allied lines on the west side of the Bidassoa.[5]


Because the French troops had begun to plunder their fellow citizens, Emperor Napoleon's Minister of War, Henri Clarke ordered Marshal Soult to defend a position as close to the frontier as possible. He had to hold a 48 km (30 mi) front in the Pyrenees mountains. The area was highly defensible, but lateral communications were poor.[5]

Full-length portrait of a frowning Soult in dark blue marshal's uniform with one hand on his hip and the other holding a spyglass. His breeches are white with black knee boots and he has a gold sash around his waist.

Marshal Nicolas Soult

Deciding that the coastal sector was the strongest part of his line, Soult posted General of Division Honoré Charles Reille and 10,550 men to defend that sector.[6] Reille's command included General of Division Antoine Louis Popon de Maucune's 3,996-strong 7th Division and General of Division Pierre François Joseph Boyer's 6,515-strong 9th Division. Maucune held the lower Bidassoa on the Bay of Biscay, while Boyer defended the stream farther inland.[7] Behind them was the entrenched camp of Bordagain and the port of St-Jean-de-Luz.[6] General of Division Eugene-Casimir Villatte's 8,018-man Reserve Division held this area.[7]

General of Division Bertrand Clausel held the center with 15,300 men in the divisions Generals of Division Nicolas François Conroux, Jean-Pierre Maransin, and Eloi Charlemagne Taupin. On the right, near the Bidassoa, stood the La Bayonette redoubt. Mont La Rhune (Larrun) rose in the center of Clausel's sector. His left touched the Nivelle River near Ainhoa.[6] Conroux's 4th Division numbered 4,962 men; Maransin's 5th Division counted 5,575 troops; Taupin's 8th Division had 4,778 soldiers and held the area just north of Bera. Soult's gunners, sappers, and other troops added up to 2,000 and his total forces numbered 55,088 effectives. His cavalry was stationed in the Nive valley.[7] Fearing an allied thrust over the Maya Pass and down the Nivelle River to the sea, Soult gave General of Division Jean-Baptiste Drouet, Comte d'Erlon 19,200 men to hold his left flank. D'Erlon's corps included the divisions of Generals of Division Maximilien Sebastien Foy, Jean Barthélemy Darmagnac, Louis Jean Nicolas Abbé, and Augustin Darricau. These troops held a line from Ainhoa to the mountain fortress of St-Jean-Pied-de-Port, covering the Maya and Roncesvalles Passes.[6] Darricau's 4,092-man 6th Division was deployed between Ainhoa and Sare; Abbé's 6,051-strong 3rd Division was west of Ainhoa; Darmagnac's 4,447-man 2nd Division held Ainhoa; Foy's 4,654-strong 1st Division held the fortress at the extreme left flank.[7] Wellington had 64,000 Anglo-Portuguese infantry and artillery, plus 25,000 Spaniards. Since cavalry was of little use in the mountains, the British commander sent most of his horse regiments to the rear, keeping a few light dragoons for patrolling. In order to gain his bridgehead, Wellington had to force a crossing of the Bidassoa estuary. The river was 910 metres (1,000 yards) wide and 6 metres (20 feet) deep at the high-water mark below the Île de la Conference. The French never suspected that there was only 1.2 meters of water over the lower fords at certain low tides, a fact that the Allies gleaned from Basque fishermen. Allied intelligence knew that the next low tide was 7 October.[2]

The crossing was meticulously planned. Near the lower fords, British engineers built a turf wall near the river. This would shelter Major General (MG) Andrew Hay's 5th Division during the time before it crossed the river. Wellington positioned five field batteries and three 18-pdr siege cannon to provide fire support to the attacking infantry.[8]


Allied Army

Arthur Wellesley, Marquess of Wellington (89,000, 24,000 engaged)[9]

Coastal Sector![lower-alpha 1]La Rhune Sector[lower-alpha 1]


Color print showing soldiers under British flags in the foreground attacking French troops with a backdrop of mountains.

Battle of the Bidassoa, 9 October 1813

At 7:25 am the 5th Division launched its attack from near Hondarribia (Fuenterrabia). It came as a complete surprise to the French, who had deployed only Maucune's 4,000 men to defend six km (four miles) of river. Immediately, Hay's men gained a foothold at the village of Hendaye and swung two brigades to the right to assist the crossing of MG Kenneth Howard's 1st Division. At 8:00 am, Howard's men, MG Thomas Bradford's independent Portuguese brigade and MG Lord Aylmer's independent British brigade forded the river near a destroyed bridge at Béhobie. Three Spanish brigades from LG Manuel Freire's two divisions (MG Del Barco and MG Barcena) crossed farther to the right. Rapidly, the British overran the Croix des Bouquets position and the Spanish captured Mont Calvaire at 43°20′16″N 1°43′7″W / 43.33778°N 1.71861°W / 43.33778; -1.71861 (Mont Calvaire). The entire ridge on the French side of the river fell into Allied hands at the cost of only 400 casualties. With the high ground in his possession, Wellington suspended the attack.[10]

That morning Soult was absorbed in watching Henry Clinton's 6th Division advancing from the Maya Pass. The division's Portuguese brigade boldly seized the Urdax ironworks, losing 150 men in the combat. Soult suddenly realized the operation was only a demonstration. He rode off to his coastal sector but he was too late to help Reille.[2]

La Rhune

The toughest fighting of the day occurred in Clausel's sector. Lieutenant Colonel John Colborne's brigade of Charles Alten's Light Division attacked La Bayonette at 43°18′35″N 1°42′12″W / 43.30972°N 1.70333°W / 43.30972; -1.70333 (Le Bayonette Redoute). The French charged downhill and drove back the green-jacketed skirmishers of the 95th Rifles Foot. Suddenly the 1/52nd (Oxfordshire) Regiment of Foot (Light Infantry) appeared out of the trees and quickly turned the tables. Following closely behind the retreating French, the redcoats of the 52nd overran the redoubt with surprising ease.[11]

Meanwhile, MG James Kempt's other Light Division brigade and Brigadier General Francisco de Longa's Spanish division attacked up two spurs of La Rhune to secure some positions. To their right, Lieutenant General Pedro Girón's two Andalusian divisions (MG Virues and MG La Torre) attacked the summit of La Rhune. Though the Spanish attacked repeatedly, they were defeated. However, the next day the French abandoned the position to avoid encirclement.[4][12][13]


In Reille's sector, the French lost 390 killed and wounded, plus 60 men and eight cannons captured. In Clausel's sector, the French suffered 600 killed and wounded, plus 598 men and nine cannons captured. The British lost 82 killed, 486 wounded, and five missing, or a total of 573. The Portuguese lost 48 killed, 186 wounded, and eight missing, or a total of 242.[3] The Spanish suffered the balance of the 1,600 total Allied casualties.[4] The defeat lowered morale in Soult's army. Except at La Rhune, French troops did not obstinately defend their positions. Villatte commented, "with troops like these we can expect only disgrace."[14] Soult made Maucune the scapegoat, dismissed him from his division, and sent him to the rear.[10] After the battle, some of the Allied troops indulged themselves in the looting of French homes and towns. Wellington came down harshly on British troops caught plundering. He felt sympathetic to the Spanish, who had seen their nation ravaged by French soldiers, but he determined to tolerate no looting for fear of provoking a guerilla war.[15]

During the follow-up to this victory, Spanish troops seized the Sainte-Barbe Redoubt at 43°18′1″N 1°34′55″W / 43.30028°N 1.58194°W / 43.30028; -1.58194 (Sainte-Barbe Redoute), 1.4 km south of the village of Sare. On 12 October, Conroux's division recaptured the fort from its garrison of La Torre's division and drove off a five-battalion Spanish counterattack. French casualties are estimated at 300, while the Spanish lost 300 killed and wounded, plus 200 captured.[16] The next engagement was the Battle of Nivelle on 10 November 1813.


An inaptly named Lieutenant Gentle Vickers of the 3rd battalion of the 95th Regiment was severely wounded in this action. He survived to take part with two companies of the 3/95 and Colborne's 52nd Regiment in the famous assault on the flanks of the advancing Imperial Guard that triggered the final rout at Waterloo.


  1. 1.0 1.1 Only the engaged units are listed in the order of battle.
  1. Glover 2001, p 281. Glover's text states 61,000, but his order of battle footnote adds up to 62,170.
  2. 2.0 2.1 2.2 Glover 2001, p. 283.
  3. 3.0 3.1 Smith 1998, pp. 459–460.
  4. 4.0 4.1 4.2 Glover 2001, p. 286.
  5. 5.0 5.1 Glover 2001, p. 280.
  6. 6.0 6.1 6.2 6.3 Glover 2001, p. 281.
  7. 7.0 7.1 7.2 7.3 Gates 2002, p. 523.
  8. Glover 2001, pp. 283–284.
  9. Glover 2001, pp 385–387. Glover's Nivelle order of battle was used.
  10. 10.0 10.1 Glover 2001, p. 285.
  11. Glover 2001, pp. 285–286.
  12. Smith 1998, p 460. Smith specifies Girón as the Spanish commander.
  13. Glover 2001, p. 386. Girón's division commanders are inferred from the Nivelle order of battle. Glover does not mention Girón in his account of the La Rhune attacks.
  14. Glover 2001, p. 287.
  15. Glover 2001, pp. 286–287.
  16. Smith 1998, p. 460.


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