The regiment embarked for Portugal in August 1808 for service in the Peninsular War. The grenadier company of the regiment served under Sir John Moore at the Battle of Corunna in January 1809 before being evacuated to England later that month. The rest of the regiment remained on the Peninsula and fought at the Battle of Talavera in July 1809 and the Battle of Bussaco in September 1810 before falling back to the Lines of Torres Vedras. It then saw action at Battle of Albuera in May 1811 and the Battle of Vitoria in June 1813. It then pursued the French Army into France and fought at the Battle of the Pyrenees in July 1813, the Battle of Nivelle in November 1813 and the Battle of the Nive in December 1813 as well as the Battle of Orthez in February 1814 and the Battle of Toulouse in April 1814. It became part of the Army of Occupation of France in 1816 before returning home in autumn 1818.