Battle of Maipú Battle of Maipú The Battle of Maipú () was a battle fought near Santiago, Chile on April 5, 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. In 1817, the Argentine General José de San Martín led an army across the Andes and defeated the Spanish at the battles of Chacabuco and Chalchuapa and captured Santiago. The Spanish viceroyalty sent a
Republic of Texas by the Spanish governor, Manuel María de Salcedo. Their victory at the Battle of Rosillo Creek convinced Salcedo to surrender on April 1, 1813; he was executed two days later. On April 6, 1813, the victorious Republican Army of the North drafted a constitution and declared the independent Republic of Texas, with Gutiérrez as its president. Soon disillusioned with the Mexican leadership, the Americans under Kemper returned to the United States. The ephemeral Republic of Texas came to an end following the August 18, 1813 Battle of Medina, where the Spanish Army crushed the Republican Army of the North. The