The regiment was deployed to Egypt in the aftermath of the Battle of Abukir in March 1801; a 2nd Battalion was raised in 1804 which suffered heavy losses at the Battle of Talavera in July 1809 during the Peninsular War. The vast majority of the 1st Battalion was captured at sea by the French at the action of 3 July 1810 near the Comoro Islands; they had been on the East Indiamen "Astell", "Ceylon" and "Windham" when a French frigate squadron captured the last two ships. They were released the following year. The 1st Battalion took part in the Anglo-Nepalese War in November 1814. The regiment was deployed to Canada in 1829 and remained there until 1842.