 Meanwhile, the 2nd battalion embarked for Portugal in April 1809 for service in the Peninsular War.It saw action at the Second Battle of Porto in May 1809, the Battle of Talavera in July 1809 and the Battle of Bussaco in September 1810 before falling back to the Lines of Torres Vedras.It also took part in the First Siege of Badajoz in January 1811 and the Battle of Albuera in May 1811.