 Complete the following phrase:  After his defeat, Tristán signed a 40-day truce and returned to Peru. The defeat of the Royalists at Salta gave the insurgents domination over the northern part of the old viceroyalty and also led to revolts against the Spanish in Charcas, Potosí and, later, Cochabamba, Alto Perú now Bolivia. At the expiration of the truce, General Belgrano followed Tristán into Alto Perú, entering the territory of Charcas on May7, 1813. However, Belgrano was defeated at 