Complex sentence: Artesanos de Tacna, Granaderos de Tacna and Cazadores de Piérola; the 8th had two units: the Tarapacá and Iquique battalions.
Split into simpler sentences: Artesanos de Tacna, Granaderos de Tacna and Cazadores de Piérola. The 8th had two units, the Tarapacá and Iquique battalions.