Viceroyalty of Peru on July 21, 1821. The independence of Peru was proclaimed on July 28, 1821. Viceroy José de la Serna e Hinojosa, still in command of a sizable military force, retired to Jauja, and later to Cusco. On July 26, 1822, San Martín and Simón Bolívar met in Guayaquil to define a strategy for the liberation of the rest of Peru. The meeting was secret, and exactly what occurred is not known. However, afterwards San Martín returned to Argentina while Bolívar prepared to launch an offensive against the remaining royalist forces in Peru and Upper Peru (Bolivia). In September 1823 Bolívar
Brazil–Peru border infrastructure, cooperation (mainly in social and security issues), border integration and economic-trade integration. In the field of physical integration, once the Interoceanic Highway, which connects the State of Acre with the Pacific and inaugurated in 2011, the two countries started to study a Bioceanic Railroad project, object of a Brazil-Peru-China Memorandum of Understanding signed In May 2015. These projects are strategic for the integration of the economies of the North and the Midwest of Brazil to Peru and the Pacific. Brazil–Peru border The Brazil–Peru border is the line, located in the Amazon Rainforest, that limits the territories of Brazil and