A second battalion of the regiment was raised in 1804 serving in England and Jersey, and embarked for Portugal in July 1809 for service in the Peninsular Campaign of the Napoleonic Wars. The 2nd battalion took part in the siege of Badajoz in spring 1811 and the Battle of Albuera, (order of battle) during which the regimental colours were successfully recovered after the colour-bearer was shot, in May 1811. The battalion captured the drums and the Drum Major's mace of the French 34e Régiment at the Battle of Arroyo dos Molinos in October 1811. It went on to fight at the siege of Ciudad Rodrigo in January 1812, the Battle of Almaraz in May 1812 and the Battle of Vitoria in June 1813. It then pursued the French Army into France fighting 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. The battalion then embarked for Ireland in July 1814.