Chile–Peru relations forces as the Confederate forces began to split on opinions and the commanding skills of Manuel Bulnes Prieto proved superior to Santa Cruz, who was killed during the battle. Following this, Peru was once again unified, and Agustin Gamarra attempted to lead an invasion to Bolivia. The attack utterly failed, Gamarra was killed, and Peru and Bolivia entered into another war. Bolivia would once again invade Peru but, without Gamarra, Ramon Castilla became the most prominent military figure of Peru and troops were soon dispatched for the defensive. The success in this defense resulted in Peruvian victories that returned both
First Upper Peru campaign of Córdoba, which was already executed for his support to Liniers. This mail mentioned a royalist army led by Goyeneche advancing over Jujuy. Balcarce, who had advanced to Potosi, was defeated by Nieto in the Battle of Cotagaita, so Castelli sent two hundred men and two cannons to strengthen his forces. With these reinforcements Balcarce achieved the victory at the Battle of Suipacha, which allowed patriots to control all of Upper Peru unopposed. One of the men sent was Martín Miguel de Güemes, who would eventually lead the "Guerra Gaucha" in Salta years later. At Villa Imperial, one of the