Chapelgorris (Spanish: [tʃapelˈɣoris]; Basque: txapelgorri, "Red Caps"), also called Peseteros, were a type of volunteer unit during the First Carlist War, raised at the beginning of the war in the province of Guipúzcoa. They fought against the Carlists. A soldier of the British Legion called them a "half-wild soldiery" who "possess the same knowledge of the country, with the war-like habits and activity of the Carlists themselves, by whom they are held in considerable dread." An unflattering description of them states that: They participated in the First Battle of Arquijas (1834).