The regiment returned to the Peninsula in January 1810. It saw action at the Battle of Barrosa in March 1811, the Battle of Albuera in May 1811 and the Battle of Arroyo dos Molinos in October 1811, as well as the Battle of Vitoria in June 1813 and the Battle of the Pyrenees in July 1813. It then pursued the French Army into France and fought at the Battle of Nivelle in November 1813, the Battle of the Nive in December 1813, the Battle of Orthez in February 1814 and the Battle of Toulouse in April 1814. It was one of the few Peninsula veteran regiments which was available for the Hundred Days campaign and fought at the Battle of Quatre Bras and at the Battle of Waterloo, as part of the 8th Brigade commanded by James Kempt, in June 1815. Because of its actions in this campaign, the regiment earned distinguished mention in the dispatches of the Duke of Wellington.