Brasil, Brazil, Federative Republic of Brazil - the largest Latin American country and the largest Portuguese speaking country in the world; located in the central and northeastern part of South America; world's leading coffee exporter

Peru, Republic of Peru - a republic in western South America; achieved independence from Spain in 1821; was the heart of the Inca empire from the 12th to 16th centuries

river - a large natural stream of water (larger than a creek); "the river was navigable for 50 miles"