Republic of South Peru Peru and North Peru reverted to being a single Republic of Peru. The Peru-Bolivian Confederation was a plan that attempted to reunite the "Alto Perú" ("Upper Peru", now Bolivia) and "Bajo Perú" ("Lower Peru", now simply Peru) 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
First Upper Peru campaign into a formal agreement, which would imply recognition of the Junta as a legitimate interlocutor. Goyeneche agreed to sign an armistice for 40 days until Lima was issued, and used that time to be strengthened. On 19 June, with the truce still in effect, an advanced royalist troop attacked positions at Juraicoragua. Castelli declared the truce broken and declared war on Peru. The royalist army crossed the Desaguadero on June 20, 1811, starting the Battle of Huaqui. The Army waited near Huaqui, between the plains of Azapanal and Lake Titicaca. The patriotic left wing, commanded by Diaz Velez, faced the