The Chilean Army is the land arm of the Chilean Armed Forces. This 80,000-person army is organized into six divisions, a special operations brigade and an air brigade.

The Battle of Maipú was fought near Santiago, Chile on 5 April 1818, between South American rebels and Spanish royalists, during the Chilean War of Independence. The Patriot rebels led by Argentine general José de San Martín effectively destroyed the Spanish forces commanded by General Mariano Osorio, and completed the independence of the core area of Chile from Spanish domination.