José Francisco de San Martín y Matorras, known simply as José de San Martín or the Liberator of Argentina, Chile and Peru, was an Argentine general and the primary leader of the southern and central parts of South America's successful struggle for independence from the Spanish Empire who served as the Protector of Peru. Born in Yapeyú, Corrientes, in modern-day Argentina, he left the Viceroyalty of the Río de la Plata at the early age of seven to study in Málaga, Spain.
The Argentine War of Independence was a secessionist civil war fought from 1810 to 1818 by Argentine patriotic forces under Manuel Belgrano, Juan José Castelli and José de San Martín against royalist forces loyal to the Spanish crown. On July 9, 1816, an assembly met in San Miguel de Tucumán, declaring independence with provisions for a national constitution.
The Battle of Boyacá (1819), was the decisive battle that ensured the success of Bolívar's campaign to liberate New Granada. The battle of Boyaca is considered the beginning of the independence of the north of South America, and is considered important because it led to the victories of the battle of Carabobo in Venezuela, Pichincha in Ecuador, and Junín and Ayacucho in Peru.
The Battle of Maipú was a battle fought near Santiago, Chile on April 5, 1818, between South American rebels and Spanish royalists, during the Chilean War of Independence. The Patriot rebels led by Argentine general José de San Martín effectively destroyed the Spanish forces commanded by General Mariano Osorio, and completed the independence of the core area of Chile from Spanish domination.
The Battle of Ayacucho was a decisive military encounter during the Peruvian War of Independence. This battle secured the independence of Peru and ensured independence for the rest of South America. In Peru it is considered the end of the Spanish American wars of independence, although the campaign of victor Antonio José de Sucre continued through 1825 in Upper Peru and the siege of the fortresses Chiloé and Callao eventually ended in 1826.
The Battle of San Lorenzo was fought on 3 February 1813 in San Lorenzo, Argentina, then part of the United Provinces of the Río de la Plata. The royalist troops, were composed of militiamen recruited in Montevideo under the command of militia captain Antonio Zabala that was defeated by the Regiment of Mounted Grenadiers, under the command of José de San Martín. This battle was the baptism by fire for this military unit, and for San Martín in the Spanish American wars of independence.
The Battle of Junín was a military engagement of the Peruvian War of Independence, fought in the highlands of the Junín Region on August 6, 1824. The preceding February the royalists had regained control of Lima, and having regrouped in Trujillo, Simón Bolívar in June led his rebel forces south to confront the Spanish under Field Marshal José de Canterac. The two armies met on the Plain of Junín in the Bombon Plateau, northwest of the Jauja Valley.
The Battle of Pichincha took place on 24 May 1822, on the slopes of the Pichincha volcano, 3,500 meters above sea-level, right next to the city of Quito, in modern Ecuador.
The Battle of Cancha Rayada, was fought in Chile between South American patriots and Spanish royalists, during the Osorio's campaign in the South American wars of independence. The result was a defeat for the patriot forces, weeks later the patriots take their rematch at the Battle of Maipú.
The Chilean War of Independence was a military and political event that allowed the emancipation of Chile from the Spanish Monarchy, ending the colonial period and initiating the formation of an independent republic.
The Peruvian War of Independence consisted in a series of military conflicts in Peru beginning with viceroy Abascal military victories in the south frontier in 1809, in La Paz revolution and 1811 in the Battle of Guaqui, continuing with the definitive defeat of the Spanish Army in 1824 in the Battle of Ayacucho, and culminating in 1826 with the Siege of Callao. The wars of independence took place with the background of the 1780–1781 uprising by indigenous leader Túpac Amaru II and the earlier removal of Upper Peru and the Río de la Plata regions from the Viceroyalty of Peru. Because of this the viceroy often had the support of the "Lima Oligarchy", who saw their elite interests threatened by popular rebellion and were opposed to the new commercial class in Buenos Aires. During the first decade of the 1800s Peru had been a stronghold for royalists, who fought those in favor of independence in Peru, Bolivia, Quito and Chile. Among the most important events during the war was the proclamation of independence of Peru by José de San Martín on 28 July 1821.
Clemente de Lantaño Pino was a royalist military officer during the Chilean War of Independence. Later, during the Spanish reconquest, he changed sides and fought for independence against the royalist forces.
The Battle of El Toro was a battle fought near Maullín, Chile between Chilean patriots and Spanish royalists, during the Chilean War of Independence.
Events from the year 1814 in Chile
The Army of the North, contemporaneously called Army of Peru, was one of the armies deployed by the United Provinces of the Río de la Plata in the Spanish American wars of independence. Its objective was freeing the Argentine Northwest and the Upper Peru from the royalist troops of the Spanish Empire. It was headed by Hipólito Vieytes (1810), Juan José Castelli (1810–1811), Juan Martín de Pueyrredón (1811–1812), Manuel Belgrano (1812–1814), José de San Martín (1814), José Rondeau (1814–1816), Manuel Belgrano (1816–1819) and Francisco Fernández de la Cruz (1819–1820).
Pedro Antonio Olañeta was a Royalist commander in the army of the Spanish Empire who fought against the South American insurgency led by Simón Bolívar. His support for Spanish absolutism and rebellion against the moderate Royalists created conflicts within the Royalist army that aided the rebels. After the defeat of the main Royalist armies, he continued the resistance, becoming one of the last Royalist commanders to hold out. Olañeta was the last Viceroy Viceroy of the Río de la Plata.
The Battle of El Roble was fought on the Itata river, 17 October 1813, between the Chilean patriot general José Miguel Carrera and Spanish royalist forces under the command of Clemente Lantaño and de Luis Urrejola. The surprise patriot victory at El Roble as a result of Bernardo O'Higgins' actions at the end of the day was to result in a change of patriot commander, and a severe split within the patriot movement.
Patria Nueva was a period in the history of Chile that began with the victory of Ejército de los Andes in the Battle of Chacabuco on 12 February 1817 and ended with the resignation of Bernardo O'Higgins as Supreme Director in 1823.
The Protectorate of Peru, also known as the Protectorate of San Martín was a protectorate created in 1821 in present-day Peru after its declaration of independence from the Spanish Empire. The protectorate existed for one year and 17 days under the rule of José de San Martín and Argentina.
Juan Antonio Álvarez de Arenales was an Argentine general of Spanish origin that fought in the war for the United Provinces of the Río de la Plata, Chile and Peru.
Chile 
United Provinces 
Spanish Monarchy