José de San Martín was defeated by the Luso-Brazilian armies, his allies Estanislao López and Francisco Ramírez continued hostilities against Buenos Aires for its inactivity against the invasion. Pueyrredón called the Army of the Andes and the Army of the North (led by Belgrano) to aid Buenos Aires in the conflict. Guido noted to San Martín that if both armies did that, the north of Argentina and Chile would be easily reconquered by the royalists. San Martín also knew that most of the soldiers of the Army of the Andes would not be willing to aid Buenos Aires in the civil war, as most
Battle of Paraguarí Battle of Paraguarí The battle of Paraguarí took place on January 19, 1811, in Paraguarí (Paraguay), between the patriot army led by Manuel Belgrano and the Royalist army located in Paraguay led by Bernardo de Velasco. The battle would end with a Paraguayan victory; but it boosted confidence in the local population to declare themselves independent from both Buenos Aires patriots and royalists months later. At the outbreak of the May Revolution in Buenos Aires, capital of the Viceroyalty of the Río de la Plata, the government emerged from it, called (in Spanish) "Junta Provisional Gubernativa de las Provincias del