In 1810, the Chasseurs Britanniques received orders to join Wellington's army in the Peninsula. Arriving in Lisbon in January 1811, the Chasseurs joined Wellington's command in March. They served in the 2nd Brigade of the Seventh Division. As part of Wellington's Army, they saw action in many of the major engagements of Peninsular campaign from 1811 to 1814, including the battles of Fuentes de Onoro, Ciudad Rodrigo, Salamanca and Vitoria, as well as the fighting in the Pyrenees.