The Legion was organized in Plymouth, in July 1808 and landed in Oporto, Portugal in September of the same year. Between 1808 and 1811, as part of the Anglo-Portuguese Army, the LLL fought against the Napoleonic Imperial Armies in the Peninsular War. It was present in the battles of Busaco(/Portugal, 27.9.1810; ca 2000 men; commander: Friedrich v. Eben u. Brunnen, German,* 1773; source: O.Pusch, 1986) and Talavera de la Reina, but was especially used to conduct raids and other irregular operations in the rear of the French Army, framing Portuguese and Spanish militia forces.