The extreme left was on the Jaizquibel. ThisPlan 5. narrow mountain ridge, seventeen hundred feet high, runs along the coast, abutting at one end upon the Passages harbour and at the other upon the navigable mouth of the Bidassoa. Offering no mark for an attack it was only guarded by a flanking detachment of Spaniards, and at its foot the small fort of Figueras commanding the entrance of the river was garrisoned by seamen from the naval squadron. Fuenterabia a walled place, also at its base, was occupied, and the low ground between that town and Irun defended by a chain of eight large field redoubts, which connected the position of Jaizquibel with the heights covering the royal road to Oyarzun.

On the right of Irun, between Biriatu and the burned bridge of Behobia, there was a sudden bend in the river, the concave towards the French, and their positions commanded the passage of the fords below; but opposed to them was the exceedingly stiff and lofty ridge, called San Marcial, terminating one of the great flanks of the Pena de Haya. The water flowed round the left of this ridge, confining the road leading from the bridge of Behobia to Irun, a distance of one mile, to the narrow space between its channel and the foot of the height, and Irun itself, strongly occupied and defended by a field-work, blocked this way. It followed that the French, after forcing the passage of the river, must of necessity win San Marcial before their army could use the great road.

About six thousand men of the fourth Spanish army now under general Freyre, were established on the crest of San Marcial, which was strengthened by abbattis and temporary field-works.

Behind Irun the first British division, under general Howard, was posted, and lord Aylmer’s brigade was pushed somewhat in advance of Howard’s right to support the left of the Spaniards.

The right of San Marcial falling back from the river was, although distinct as a position, connected with the Pena de Haya, and in some degree exposed to an enemy passing the river above Biriatu, wherefore Longa’s Spaniards were drawn off from those slopes of the Pena de Haya which descended towards Vera, to be posted on those descending towards Biriatu. In this situation he protected and supported the right of San Marcial.

Eighteen thousand fighting men were thus directly opposed to the progress of the enemy, and the fourth division quartered near Lesaca was still disposable. From this body a Portuguese brigade had been detached, to replace Longa on the heights opposite Vera, and to cover the roads leading from the bridge and fords of that place over the flanks of the Pena de Haya. Meanwhile the British brigades of the division were stationed up the mountain, close under the foundry of San Antonio and commanding the intersection of the roads coming from Vera and Lesaca; thus furnishing a reserve to the Portuguese brigade to Longa and to Freyre, they tied the whole together. The Portuguese brigade was however somewhat exposed, and too weak to guard the enormous slopes on which it was placed, wherefore Wellington drew general Inglis’s brigade of the seventh division from Echallar to reinforce it, and even then the flanks of the Pena de Haya were so rough and vast that the troops seemed sprinkled here and there with little coherence. The English general aware that his positions were too extensive had commenced the construction of several large redoubts on commanding points of the mountain, and had traced out a second fortified camp on a strong range of heights, which immediately in front of Oyarzun connected the Haya with the Jaizquibel, but these works were unfinished.

During the night of the 30th Soult garnished with artillery all the points commanding the fords of Biriatu, the descent to the broken bridge and the banks below it, called the Bas de Behobia. This was partly to cover the passage of the fords and the formation of his bridges, partly to stop gun-boats coming up to molest the troops in crossing, and in this view also he spread Casa Palacio’sSoult’s Official Correspondence, MSS. brigade of Joseph’s Spanish guards along the river as far down as Andaya, fronting Fuenterabia.

General Reille, commanding La Martiniere’s, Maucune’s, and Villatte’s divisions, directed the attack. His orders were to storm the camp of San Marcial, and leaving there a strong reserve to keep in check any reinforcement coming from the side of Vera or descending from the Pena de Haya, to drive the allies with the remainder of his force from ridge to ridge, until he gained that flank of the great mountain which descends upon Oyarzun. The royal road being thus opened, Foy’s division with thePlan 5. cavalry and artillery in one column, was to cross by bridges to be laid during the attack on San Marcial. And it was Soult’s intention under any circumstances to retain this last-named ridge, and to fortify it as a bridge-head with a view to subsequent operations.

To aid Reille’s progress and to provide for the concentration of the whole army at Oyarzun, Clauzel was directed to make a simultaneous attack from Vera, not as at first designed by driving the allies from Santa Barbara and seizing the bridges, but leaving one division and his guns on the ridges above Vera to keep the light division in check, to cross the river by two fords just below the town of Vera with the rest of his troops, and assail that slope of the Pena de Haya where the Portuguese brigade and the troops under general Inglis were posted. Then forcing his way upwards to the forge of San Antonio, which commanded the intersection of the roads leading round the head of the mountain, he could aid Reille directly by falling on the rear of San Marcial, or meet him at Oyarzun by turning the rocky summit of the Pena de Haya.

Combat of San Marcial. At daylight on theAugust. 31st, Reille, under protection of the French guns, forded the river above Biriatu with two divisions and two pieces of artillery. He quickly seized a detached ridge of inferior height just under San Marcial, and leaving there one brigade as a reserve detached another to attack the Spanish left by a slope which descended in that quarter to the river. Meanwhile with La Martiniere’s division he assailed their right. But the side of the mountain was covered with brushwood and remarkably steep, theSoult’s Official Report, MSS. French troops being ill-managed preserved no order, the supports and the skirmishers mixing in one mass got into confusion, and when two-thirds of the height were gained the Spaniards charged in columns and drove the assailants headlong down.