The Chilean Independence movement was led by Chilean-born criollos, who sought political and economic independence from Spain. The movement for independence was far from gaining unanimous support among Chileans, who became divided between independentists and royalists. What started as an elitist political movement against their colonial master, finally ended as a full-fledged civil war. Traditionally, the process is divided into three stages: Patria Vieja, Reconquista, and Patria Nueva.
Brigadier García Carrasco was a man of crude and authoritarian manners, who managed in a very short time to alienate the criollo elites under his command. Already in Chile, as in most of Latin America, there had been some independence agitation but very minimal and concentrated in the very ineffectual Conspiracy of the Tres Antonios. The majority of the people were fervent Royalists and defenders of the status quo. García Carrasco magnified the problem by taking arbitrary and harsh measures, such as the arrest and extradition to Lima, without due process, of well-known and socially prominent citizens under simple suspicions of having been sympathetic to the plot.
In 1809 Governor García Carrasco himself was implicated in a flagrant case of corruption (the Scorpion scandal) that managed to destroy whatever remnants of moral authority he or his office had left. From that moment on, the pressure for his removal began to build. In June 1810 news arrived from Buenos Aires that Napoleon Bonaparte's forces had conquered Andalusia and laid siege to Cádiz, the last redoubt against the French on Spanish soil. Moreover, the Supreme Central Junta, which had governed the Empire for the past two years, had abolished itself in favor of a Regency. The news that Cádiz was all that was left of a free Spain unleashed a series of events and in July 1810, these news finally crystallized the opposition to the Governor who was suspended from office and forced to resign.
Governor García Carrasco was in turn replaced by the next most senior soldier at that time, Mateo de Toro Zambrano, Count of la Conquista. Toro Zambrano was, by all standards, a very unorthodox appointment. He was a very old man already (82 years old at the time) and moreover a "criollo" (someone born in the colonies) as opposed to a "peninsular" (someone born in Spain). The autonomy movement also had, inspired by the May Revolution in Argentina, thoroughly propagated through the criollo elite and it proposed the replacement of the Spanish authorities with a local junta of notable citizens, which would conform a provisional government to rule in the absence of the king and an independent Spain. After vacillating for some time, Toro Zambrano agreed to hold an open Cabildo (City Hall) meeting on the issue in Santiago. The date was set for September 18, 1810.
Immediately, political intrigue began amongst the ruling elite, with news of the political turbulence and wars of Europe all the while coming in. It was eventually decided that elections for a National Congress would be held in 1811. Close to the expected day, the monarchist Tomás de Figueroa—considering the notion of elections to be too populist—led a revolt in Santiago, the so called Figueroa mutiny. The revolt sputtered, and Figueroa was arrested and summarily executed. In addition, the revolt was used as a pretext for dissolving the Real Audiencia—a longstanding pillar of Spanish crown control—and full independence gained momentum.
During this period, the provisional Constitution of 1812 was promulgated with a marked liberal character. An example of this is the stipulation that "no order that emanates from outside the territory of Chile will have any effect, and anyone who tries to enforce such an order will be treated as a traitor." Carrera also created patriotic emblems for the Patria Vieja such as the flag, shield, and insignia. Also during his government, the first Chilean newspaper, the Aurora de Chile was published. Directed by Friar Camilo Henríquez, it supported the independence movement. Additionally, Carrera was responsible for bringing the first American consul to Chile. This was important, as it established a direct link between the liberalism and federalism of the United States with the principles of the Chilean independence movement. Finally, he founded the Instituto Nacional de Chile and the National Library of Chile. Both the these prestigious institutions have survived to the present day.
After the attempt by Gaínza, the two sides had signed the Treaty of Lircay on May 14, nominally bringing peace but effectively only providing a breathing space. (Prago 140) Absacal had no intention of honoring the treaty and that very year sent a much more decisive force southwards, under the command of Mariano Osorio. The Royalist force landed and moved to Chillán, demanding complete surrender. O'Higgins wanted to defend the city of Rancagua, while Carrera wanted to make the stand at the pass of Angostura, a more felicitous defensive position but also closer to Santiago. Because of the disagreements and resulting lack of coordination, the independence forces were divided, and O'Higgins was obliged to meet the Royalists at Rancagua without reinforcements. The resulting battle, the Disaster of Rancagua, on October 1 and 2 of 1814, was heroically fought, but ended in stunning defeat for the independence forces of which only 500 of the original 5,000 survived. (Prago 141) A little while later, Osorio entered Santiago and put the rebellion of the Patria Vieja to an end.
A large group of patriots (among them Carrera and O'Higgins) decided to flee to Mendoza, an Andean province of the newly independent Argentina. At the time, the governor of this province was José de San Martín, a leader of the Argentine independence movement who would become regarded as the "Simon Bolivar" of the southern part of Spanish South America. Upon the arrival of the exiles, San Martín immediately began to favor O'Higgins (probably because of their shared membership in the Logia Lautaro, a pro-independence secret society). The star of Carrera continued to fade, finally extinguished when he was executed by firing squad in 1821.
While San Martín and O'Higgins organized an army to recross the Andes and recapture Santiago, they charged the lawyer Manuel Rodríguez Erdoiza with the task of mounting a guerrilla campaign. The goals of the campaign were to keep the Spanish forces off balance, ridicule San Bruno, and generally bolster the morale of the patriots. Through his subsequent daring exploits, Rodríguez became a romantic hero of the revolution. In one of his more celebrated actions, he disguised himself as a beggar and succeeded in obtaining a coin of pity from the Governor Marco del Pont himself, who at that time had put a price on Rodríguez's head.
The liberating Army of the Andes was prepared by 1817. After a difficult crossing the Andes, royalist forces led by Rafael Maroto were encountered on the plain of Chacabuco, to the north of Santiago. The resulting Battle of Chacabuco, on February 12, 1817, was a decisive victory for the independence forces. As a result, the patriots re-entered Santiago. San Martín was proclaimed Supreme Director, but he declined the offer and put O'Higgins in the post, where he would remain until 1823. On the first anniversary of the Battle of Chacabuco, O'Higgins formally declared independence.
Crippled after his defeat at Cancha Rayada, O'Higgins delegated the command of the troops to San Martín in a meeting on the plains of Maipú. Then, on April 5, 1818, San Martín inflicted a decisive defeat on Osorio the Battle of Maipú, after which the depleted royalists retreated to Concepcion, never again to launch a major offensive against Santiago. Independence was all but secured, and worries about internal divisions were allayed when O'Higgins saluted San Martín as savior of the country, a moment which came to be known as the Embrace of Maipú
In any case, San Martín and O'Higgins were in agreement that the danger would not be passed until the Viceroyalty of Peru itself was independent from Spain. Thus, a fleet and army was prepared for an expedition to the country, and in 1820, San Martín and Cochrane set off for Peru. However, the audacious and daring character of Cochrane conflicted with the excessive prudence of San Martín. San Martín let escape a number of opportunities to land the decisive blow against the viceroy, and in the end it was Simón Bolívar who launched the final offensive after coming down from Colombia Peruvian independence was secured after the Battle of Ayacucho on December 9, 1824, in which forces led by Antonio José de Sucre—a lieutenant of Bolívar—defeated the royalist army for good.
In Chilean historiography, the Patria Nueva generally ends in 1823, with the resignation of O'Higgins. However, the last Spanish territory in Chile, the archipelago of Chiloé, was not conquered until 1826, during the government of Ramón Freire, O'Higgins' successor.
