de la Guardia" and Regiment 2º de "Nacionales", both cavalry with a total of 4 squadrons, 2 of them hunters, 1 cuirassiers and 1 guides. The artillery had a brigade with 4 pieces under the command of Commander García. On June 24, 1837, the Battle of Montenegro occurs, in the vicinity of Padcaya. Paz thad to withdraw to Argentine territory, being continually harassed by Bolivian troops. In this battle the Bolivians captured 20 Argentine officers. End of the War Santa Cruz annexed to Bolivia the Argentine territory of the Puna de Jujuy in which the populations of Santa Catalina, Yavi, Santa Victoria, Cangrejillos, Pueso, Abra Pampa, Cochinoca, Pastos Chicos, and others are found. He placed it under the dependency of the Department of Tarija and appointed Bolivian authorities, among whom were Timoteo Raña, Sebastián Agreda and Bernardo Trigo. However, on January 20, 1839, the restorative forces of the Chilean Manuel Bulnes and the Peruvian Agustín Gamarra achieved the victory of Yungay against Santa Cruz during the War of the Confederation, which put an end to the Peru-Bolivian Confederation. On February 14, 1839, General Velasco, the new president of Bolivia, informed the governor of Jujuy of the end of the state of war and showed himself willing to negotiate the problem of Tarija. On April 26, 1839, General Rosas officially put an end to the war without taking advantage of the defeat of Santa Cruz to advance on Tarija, allowing them to decide the issue. They remained on the Bolivian side. The territory of the Puna de Jujuy, Iruya and other occupied populations were returned by Bolivia in March 1839. References History of South America Wars involving Argentina Wars involving Bolivia Wars involving Peru