The second battalion accompanied the force under Major-General Rowland Hill in all its movements in Portugal and on the frontiers of Spain, and in August 1810 was one of the corps of the second division, when it formed, by forced marches, the memorable junction with Viscount Wellington on the heights of _Busaco_. Lieut.-Colonel George Wilson being appointed to the charge of a brigade, Major Patrick Lindesay, afterwards Major-General Sir Patrick Lindesay[26], commanded the battalion, which formed part of the right of the army in the battle at _Busaco_, on the 27th of September, but the battalion was not engaged in the action. When General Regnier attacked the position held by the third and fifth divisions, Major-General Hill withdrew towards his left to support them: it was unnecessary, however, these divisions having repulsed the enemy, and he therefore continued in his original position. After the battle of Busaco, the second battalion accompanied the army in its retrograde movement to the Lines of _Torres Vedras_, where it remained until orders were given to advance in pursuit of the French troops towards Santarem, when it crossed the Tagus with the corps under Major-General Hill, and occupied cantonments at Almeirem, immediately opposite the head-quarters of the enemy. [Sidenote: 1811. 2nd Batt.] In consequence of the French army retreating from Portugal into Spain, the second battalion of the THIRTY-NINTH regiment accompanied the second division in its movements towards the frontiers, and was present at the expulsion of the enemy from the fortress of Campo Mayor on the 25th of March 1811; subsequently the battalion crossed the Guadiana at Jerumenha, and was present with the second division in a variety of skirmishes at Los Santos and Zafra, as well as at the investment of _Badajoz_ on the 2nd of May, where the battalion was actively employed in making approaches and constructing batteries against that fortress until the 14th of May, when it marched with the corps under Marshal Sir William Carr (now Viscount) Beresford to _Albuhera_, where the battalion arrived on the evening of the 15th of that month, and was attacked on the following day by the French army under Marshal Soult. In the battle of _Albuhera_, fought on the 16th of May, the second battalion of the THIRTY-NINTH regiment, although only four hundred strong, bore a distinguished part. The brigade to which it belonged, having been brought up at a critical moment, materially assisted in deciding the fate of the day, preventing by its fire the deployment of a heavy column of the enemy’s reserve, which was ultimately obliged to give way with considerable loss, and retreated in confusion across the river Albuhera. On this occasion the second battalion had Lieutenant George Beard and fourteen rank and file killed; Captain James Brine, Lieutenants John William Pollard, Francis H. Hart, Ensign Charles Cox, four serjeants, and seventy-three rank and file wounded.