This probable attack had been foreseen by Lord Wellington, and, with his accustomed caution, means had been adopted to render it unsuccessful. In the event of assistance being required, the sixth division was placed at Hill’s disposal; and early on the morning of the 13th, the third and fourth divisions moved towards the right of the allied lines, and were held in readiness to pass the river should circumstances demand it. As Lord Wellington had anticipated, Soult marched his main body through Bayonne during the night of the 12th, and at daylight, pushing forward thirty thousand men in columns of great strength, attacked furiously the right wing of the allies. Hill had only fourteen thousand British and Portuguese to repel the French marshal’s assault, but the ground he occupied was capable of being vigorously defended. On the right, General Byng’s brigade was formed in front of the Vieux Monguerre, occupying a ridge, with the Adour upon the right, and the left flanked by several mill dams. The brigades of Generals Barnes and Ashworth were posted on a range of heights opposite the village of St. Pierre, while two Portuguese brigades were formed in reserve immediately behind Ville Franque. The general form of the line nearly described a crescent, and against its concave side the efforts of the French marshal were principally directed. The position extended from the Adour to the Nive, occupying a space, from right to left, of four miles. The outposts stationed on the road from Bayonne to St. Jean Pied de Port were driven back by the enemy’s tirailleurs, followed by the main body of the French, who mounted the sloping ground in front of the British position, and supported by another division, which moved by a hollow way between the left centre and Pringle’s brigade, they came forward in massive columns. Sir Rowland Hill at once perceived that Soult’s design was to force his centre, and carry the heights of St. Pierre. To strengthen that part of the position, the brigade of General Byng was promptly moved to the right of the centre, leaving the third (Buffs) regiment and some light companies at Vieux Monguerre, while a Portuguese brigade was marched from behind Ville Franque to support the left. The sixth division was apprised of the threatened attack, and an aide-de-camp was despatched to order its immediate march upon the centre.