Structure of the Chilean Army

Office of the Army Commander in Chief in Santiago, the Army's headquarters city where it is situated Army General Staff Office (Estado Mayor General del Ejército) Army Ground Operations Command, headquartered in Concepcion, the base garrison of the Chacabuco 6th Infantry Regiment Responsible for the defense of the Antofagasta and Atacama regions.

Responsible for the defense of the Coquimbo, Valparaíso, Santiago, O'Higgins, Maule, and Ñuble regions.

Responsible for the defense of the Magallanes region, which includes the world's southernmost city of Punta Arenas.

Army Institution and Doctrine Command (Commando Instituto y Doctrina) Army Force Support Services Command (Commando Apoyo de la Fuerza) All infantry units and most of the artillery regiments are named after important battles or places in Chile, while the cavalry regiments are named after the various types of cavalry.

These are the units: es:Anexo:Organización del Ejército de Chile