A second battalion was again raised in May 1804. In late 1805 this embarked for Gibraltar, before sailing to Italy and participating in the Battle of Maida in July 1806. It also took part in the Alexandria Expedition in spring 1807. Three companies of the regiment were captured at Al Hamed near Rosetta: among the prisoners was Thomas Keith who converted to Islam and entered Ottoman service. Returning home in January 1808, a draft from the battalion were present at the disastrous Dutch Walcheren Campaign in autumn 1809, which suffered substantial losses due to malaria. Although under strength, the battalion embarked for Holland in January 1814, and routed a larger French force during a skirmish at Merksem, near Antwerp. Remaining in Belgium on garrison duty, the battalion was in reserve at Nieuwpoort during the Waterloo campaign, returning home in February 1816.