グルカ戦争
The 1st Battalion sailed on to the Cape of Good Hope in August 1807 and then took part in the Invasion of Isle de France in December 1810. The regiment became the 87th (The Prince of Wales's Own Irish) Regiment of Foot in 1811. The 1st Battalion embarked for India in June 1815 and saw action in the Nepal Hills in January 1816 during the Anglo-Nepalese War. It amalgamated with the 2nd Battalion in February 1817.