The 1st Battalion returned to the Peninsula in September 1812 and saw action at the Battle of Vitoria in June 1813 and the Battle of Sorauren in July 1813. It then pursued the French Army into France and fought at the Battle of the Nive in November 1813, the Battle of Nivelle in December 1813 and the Battle of Orthez in February 1814 as well as the Battle of Toulouse in April 1814.