Apart from Egypt and the Battle of Alexandria in 1801 and the Invasion of Martinique in 1809 the regiment saw little action in the Napoleonic Wars until being sent to the Peninsula in 1810. Between 1811 and 1814, it fought in many of Wellington's actions, including the battles of Albuera, Badajoz, Salamanca, Nivelle and Toulouse. At the Battle of Waterloo in June 1815, it was part of Lieutenant Colonel Hugh Mitchell's 4th Brigade in the 4th Infantry Division.