War of the Confederation

The direct conflict between the two countries started with a simple tariff disagreement. In January 1835, Gen. Felipe Salaverry, by then president of Peru, signed a Treaty of Friendship, Commerce and Navigation with Chile. When President Salaverry was replaced by General Luis Orbegoso in Peru, the treaty was declared null and void on February 14, 1836. In the meantime, the Confederacy was already taking form. In order to force Chile to renegotiate, Peru raised its tariff on Chilean wheat from 12 cents to 3 pesos - an increase of 2,400%. Chile responded by raising the tariffs on Peruvian sugar by the same amount. The hostilities started to grow until the Mexican minister (ambassador) to Chile offered to mediate in the conflict. Open conflict was averted for the time being.

After the victory of the conservative party in the Chilean Civil War of 1829–1830, former Chilean president General Ramón Freire y Serrano was exiled to Lima. He managed to obtain a small subsidy from the Confederate government to equip a frigate and try to wrestle power from the Prieto administration. The adventure was a quick failure. The sloop Orbegoso was captured by the frigate Monteagudo on July 28, 1836 and became part of the Chilean fleet. In the meantime, Freire who had managed to capture the city of Ancud was defeated and captured himself, being sent this time to the prison-island of Robinson Crusoe. Later he was exiled to Australia.

The Peruviana sails under Chilean flag after her capture in Callao by the Aquiles. Oilpainting of Álvaro Casanova Zenteno.

The Freire Expedition had a secondary result. Portales decided to take the offensive and staged a surprise raid to prevent further interference by the Confederate government in Chilean internal affairs. He gave command of the small Chilean fleet to the Spanish sailor Victorino Garrido and ordered him to raid the Confederate fleet that was stationed in the port of Callao. Garrido, who arrived with the brigantine Aquiles on a goodwill visit, staged a silent attack on the night of August 21, 1836, managing to capture 3 confederate ships: the Santa Cruz, Arequipeño and Peruviana.

Instead of immediately going to war, Marshal Andrés de Santa Cruz tried to negotiate with Chile. The Chilean Congress sent Mariano Egaña as plenipotentiary to negotiate a treaty based on several points: the payments of the outstanding international debts owed by Peru to Chile, the limitation of the outstanding armies, commercial agreements, compensation to Chile for the Freire Expedition, and the dissolution of the Confederation. Santa Cruz agreed to everything but the dissolution. Chile responded by declaring war on December 28, 1836. The international situation was not favorable to the Chilean interests. Marshal Santa Cruz and the Confederation had been diplomatically recognized by the principal world powers with interests in the region (Great Britain, France and the United States), while the possible Chilean allies (Argentina and Ecuador) had decided to remain neutral in the conflict.

Nonetheless, the involvement of Marshal Santa Cruz in Argentina's internal affairs by his continued support to the opponents of caudillo Juan Manuel de Rosas, moved this country to also declare war on May 9, 1837, in support of the northern province of Tucumán, which was threatened by Santa Cruz's forces. France supported Santa Cruz's war effort by imposing a naval blockade over Buenos Aires, an ill-fated attempt to remove Rosas from power.

Even though Chile and Argentina were acting against the same perceived threat, both countries went to war independently, due to the intense dislike between Portales and Rosas, and both countries continued to act separately throughout the whole course of the conflict. In 1837 Santa Cruz's forces defeated an Argentine army sent to topple him.

The Chilean government, in order to bolster its sagging standing with public opinion (which was opposed to a war they did not understand), imposed martial law and asked for (and obtained) extraordinary legislative powers from Congress. Early in 1837 a Court Martial Law was approved and given jurisdiction over all citizens for the duration of the war. The opposition to the Prieto administration immediately accused Portales of tyranny, and started a heated press campaign against him personally and the unpopular war in general.

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  Chilean Rear Admiral Manuel Blanco Encalada
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  Argentine General Juan Manuel de Rosas
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  Peruvian General Agustin Gamarra

Political and public opposition to war immediately affected the army, fresh still from the purges of the civil war of 1829-1830. On June 4, 1837, Coronel José Antonio Vidaurre, commander of the "Maipo" regiment, captured and imprisoned Portales while he was reviewing troops at the army barracks in Quillota. Vidaurre immediately proceeded to attack Valparaíso on the mistaken belief that public opinion opposed to the war would support him and topple the government. Rear Admiral Manuel Blanco Encalada, in charge of the defense, defeated him right outside the port at the Battle of Baron. Captain Santiago Florín, who was in charge of Portales, had him shot when he heard of the news, on June 6, 1837. Most of the conspirators were subsequently captured and executed.

This murder, which was perceived as having been orchestrated by Marshal Santa Cruz, turned the tide of Chilean public opinion. The government derogated Martial law and the country rallied behind the government. The war became a holy cause, and Portales its martyr.

The first stage of the war was fought at sea. Both sides tried to take control of it from the very beginning. The Confederate fleet was composed of the Socabaya, Confederación and Congreso and it put out to sea on November 1837. They first attacked the Juan Fernández garrison, which they captured, liberating the prisoners there. Then they attacked the ports of Talcahuano, San Antonio, Huasco and Caldera.[18]

In the meantime, the Chilean government was preparing an expedition to put a quick end to the conflict. In September 1837 it sent a fleet carrying a Chilean expeditionary force of approximately 2,800 troops under the command of Admiral Manuel Blanco Encalada. The Chilean army landed at Islay in southern Peru in October, 1837, occupying the city of Arequipa after a long and arduous march, during which the Chileans were decimated by disease. But the invading army failed to find the local support that they had been led to believe they would encounter against the Confederate government. While Admiral Blanco Encalada was immersed in never-ending negotiations with the local leaders, Marshal Santa Cruz quietly surrounded the city with his army and effectively blockaded the invading army inside.

Surrounded and out-manoeuvered, and following an encounter at Paucarpata with an army under the command of Santa Cruz, Admiral Blanco Encalada was forced to sign a peace treaty. The Treaty of Paucarpata was signed on November 17, 1837, and agreed to the devolution of all captured ships by Chile, the restoration of commercial relations between both nations, the withdrawal of all Chilean troops from Confederate territories and the payment by the Confederacy of the former Peruvian foreign debts with Chile. The Chilean troops were reembarked.

When Admiral Blanco Encalada returned rather ignominiously to Valparaíso with the fleet and the army in December, 1837, the scandal was gigantic. The Chilean government and the Chilean public opinion repudiated the treaty in indignation. Admiral Blanco Encalada as was thrown into jail and tried for high treason, together with his advisor Antonio José de Irisarri, who had refused to even return to Chile. Both were eventually acquitted, though Irisarri never returned.

Although their advance was delayed by harassment from small groups of Confederate forces, the Chileans were finally able to lay siege to Lima. The first encounter between the two armies was the Battle of Portada de Guías which took place right outside the city of Lima on August 21, 1838. The Chilean army, under the command of General Bulnes, defeated the Confederate garrison loyal to General Orbegoso. The Chilean force occupied Lima at the end of October, 1838 but abandoned it on November 3 on hearing of the approach of a large Bolivian army under General Santa Cruz. The Chileans withdrew by land and sea toward Huacho. In the meantime, the principal citizens had met and called an open congress that proclaimed General Gamarra as Provisional President of Peru.

Battle of Casma

On January 12, 1839 both fleets met in a naval battle at Casma, where the French corsairs fighting on the Confederate side were defeated by Admiral Simpson's Chilean fleet. On that day the Chilean fleet, which was protecting the transports used to mobilize the invading Chilean army, were attacked in the port of Casma by the Confederate fleet, composed of the Esmond, Mexicana, Arequipeño and Peru, under the command of French sailor Juan Blanchet. The battle lasted for several hours until the final repulse of the Confederate fleet. During the battle Blanchet was killed and the Confederate ship Arequipeño was sunk, but not before the Chilean fleet had been badly battered. Nonetheless, the resounding defeat of the Confederate fleet at Casma by the smaller Chilean squadron left Chile in absolute control of the southeastern Pacific.

Meanwhile, Santa Cruz failed to exploit the Chilean retreat fully, despite successes in several small skirmishes culminating in the first direct encounter between the bulk of both armies around the bridge of Buin on January 6, 1839. Santa Cruz' vanguard engaged Bulnes' rearguard at the margins of the Santa River, under a heavy storm. The battle ended in a draw, as Bulnes resumed their march north, and Santa Cruz continued to pursue them.

Marshal Santa Cruz occupied the town of Yungay with the intention to cut the provisions and to strangle the Chilean Expedition. After Buin, Santa Cruz was trying to finish off the Chilean Expedition in order to stabilize the internal situation in the country and to avoid any more uprisings against him. Here is where the boldness of General Bulnes could be observed, when instead of retiring and looking for a more suitable position, turned around against Santa Cruz ready to attack.

The Battle of Yungay took place on January 20, 1839. In this battle, the Confederates, under the command of Marshal Santa Cruz, waited for Bulnes' offensive well defended on the Pan de Azúcar and Punyán hills, near the town of Yungay, and the rest were deployed over the Ancash River bank. The battle started very early on the morning and finished late in the evening. The Chileans first took the Punyán and Pan de Azúcar hills, and later attacked the bulk of the Confederates on the river. In the end, Bulnes crushed Santa Cruz' army. The Confederates had over 2,400 casualties (mostly dead) and more than 1,600 soldiers were made prisoners, while the Chilean army had about 1,300 dead and 400 injured.

After the battle, General Manuel Bulnes was proclaimed as Grand Marshal of Ancash by General Gamarra.