While the army under the Marquis of Wellington, which title was conferred upon him after the victory of Salamanca, was engaged in the siege of the Castle of _Burgos_, the second battalion of the THIRTY-FIRST regiment remained at Aranjuez. In consequence of the necessity of raising the siege of Burgos, and retreating, Lieut.-General Sir Rowland Hill broke up from his ground on the Tagus, to effect a junction with the grand army, which commenced its retrograde movement from Burgos on the 21st of October. On the 30th of October, Lieut.-General Sir Rowland Hill, having taken up a position of defence on the Jarama, was pressed by the enemy, who attacked the bridge of Aranjuez. The French were repulsed by Colonel Skerrett, with the forty-seventh (of which he was the Lieutenant-Colonel), and part of the ninety-fifth regiment, now the Rifle Brigade. The retreat continued without molestation; and on the 8th of November, the troops under Lieut.-General Sir Rowland Hill were at Alba, while the Marquis of Wellington occupied the heights of San Christoval. The brigade of the second division, in which the second battalion of the THIRTY-FIRST was posted, being in the neighbourhood of the fords of Encinas. On the 14th of November, the enemy passed the river near that place, and the Marquis of Wellington moved with the second division to attack him, while the remainder of the troops were ordered towards the Arapiles in the evening. No engagement occurred. The enemy fortified himself at Mozarbes, on the ground he had taken up the night before, and moved bodies of cavalry and infantry to the communication with Ciudad Rodrigo. The superiority of numbers on the part of the French caused the British army to continue its march to Ciudad Rodrigo, which it reached on the 19th of November. Thus ended the retreat from Burgos. The men had suffered greatly on the march and required rest; the enemy had pressed the retreat closely with his cavalry, and made an attack upon the rear upon the passage of the Huebra; the roads were difficult, and in some parts impassable. The second battalion of the THIRTY-FIRST did not share in the hardships of the main retreat until it had crossed the Tormes. Marshal Soult having retired to the Upper Tormes, towards the pass of Banos, it was reported that he intended to invade Portugal by the valley of the Tagus. Lieut.-General Sir Rowland Hill’s division was therefore moved to the right as far as Robledo, to cover the pass of Perales. King Joseph, however, in December, took up his position for the winter, and the allied army was also distributed in quarters. Lieut.-General Sir Rowland Hill’s division occupied Coria and Placentia, the THIRTY-FIRST being cantoned in the latter place. [Sidenote: 1813]