The Peru-Bolivian Confederation was a plan that attempted to reunite the Alto Perú and Bajo Perú into a single political and economic entity. Marshal Andrés de Santa Cruz promoted an ambitious project to reunite these two territories on the basis of a confederacy. This integration was based not only on historical, cultural and ethnic reasons but also on sound economic motives. The union was trying to restore the ancient commercial routes and promote a policy of open markets. As President of Bolivia, Santa Cruz instigated several failed plots to achieve a political union with Peru, taking advantage of that country's chronic political unrest. His best opportunity came in 1835 when the Peruvian President General Luis José de Orbegoso requested his assistance to fight the rebel armies of Generals Agustín Gamarra and Felipe Santiago Salaverry. Santa Cruz defeated Gamarra at the Battle of Yanacocha on and Salaverry at the Battle of Socabaya on. With Bolivian help, General Orbegoso quickly regained his leadership throughout the country and had Salaverry summarily executed. In retribution to the support he received from Santa Cruz, he acceded to the formation of the new Peru–Bolivian Confederation. Santa Cruz assumed the Supreme Protectorship of the confederation and Orbegoso maintained only the presidency of the newly created Republic of North Peru.
Creation
At the instigation of Santa Cruz, a Congress of the Peruvian northern departments gathered at Huaura founded the Republic of North Peru on. Then, together with South Peru, they recognized Santa Cruz as Supreme Protector with extensive powers that enabled him to create the Peru-Bolivian Confederation on 28 October. Santa Cruz then summoned to the city ofTacna representatives of both legislatures together with those of the Bolivian Congress assembled at Tapacarí, to establish a Constitution for the new state. Under his direction, they signed a pact on which named him Supreme Protector for a ten-year period.
Structure of the republic
There was, from 1837 until the dissolution, a provisional president and a congress, both with limited powers and under the control of Marshal Andrés de Santa Cruz who was styled the supreme protector.
First president: General Luis Orbegoso. He declared secession of the Republic of North Peru from the Peru-Bolivian Confederation on but continued as Provisional President until
Invested with considerable powers, Santa Cruz endeavoured to establish in Peru the same type of authoritarian order he had imposed in Bolivia. He issued civil code, a penal code, a trade regulation, customs regulation and reorganized tax collection procedures allowing an increase in state revenues while restraining expenditures. However, the Confederation generated resistance among several groups in both countries, which resented the dilution of national identities, and also among neighbouring countries. An important number of Peruvian politicians opposed to the idea of the Confederation fled to Chile where they received support and this led to the War of the Confederation. Chile declared war on 28 December 1836 and Argentina followed suit on. The Chilean military expedition against Santa Cruz, led by Admiral Manuel Blanco Encalada failed, and he had to submit to signing the Treaty of Paucarpata, on. The Chilean government then organized a second expedition, which defeated the Supreme Protector at the Battle of Yungay on and forced the dissolution of the Confederation. On 25 August 1839 General Agustín Gamarra after assuming as president of Peru, officially declared the dissolution of the Confederation and of the merging of the Northern and Southern Peruvian Republics into one to be called again Peru and separated from Bolivia.
