The grand object of the French marshal in his sustained attacks upon the allied left, was to force the position and penetrate to St. Jean de Luz. Although so severely handled in his attempts upon the 10th and 11th, the bustle visible along his line, and the activity of the officers of his staff during the morning of the 12th, shewed that he still meditated a fresh effort. The imposing appearance of the allied troops on the heights of Barouillet induced him to change his intention; and he made arrangements to throw his whole disposable force suddenly upon the right wing of the British, and attack Sir Rowland Hill with overwhelming numbers. 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. General Pringle held the ridge of Ville Franque with his brigade; the Nive ran in front of his left, and his right also appuied on 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.