 Ramba uchinyora ndima iyi - Guy akaonazve chiito ne6th panguva yePeninsular War, achirwa paRoliça neVimeiro, uye achitora chikamu mukufambira mberi nekudzokera shure kwaSir John Moore. Akakwidziridzwa kuva mukuru musi wa 1 Kubvumbi 1813, Campbell ne6th vakarwa paVitoria 21 Chikumi 1813, uye nekuda kwekukuvara kwemukoroni, vakatora mutungamiri wechirongwa. Munguva yemishandirapamwe yakatevera, Campbell akatungamira yechitanhatu panguva yeHondo yePyrenees, uye akakuvadzwa zvakaipisisa achitungamirira chikwata, musi wa 2 Nyamavhuvhu 1813, pakurwisa Heights yeEchalar, chiitiko chakakunda kurumbidzwa kwaWellington kwechikwata. Somugumisiro, Campbell akasimudzirwa kuva lieutenant-colonel musi wa 26 August 1813. 