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BATTLE // January 12, 1839

Battle of Casma

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Overview

The Battle of Casma was a naval confrontation that occurred on 12 January 1839 during the War of the Confederation between Chile and the Peru–Bolivian Confederation. The battle took place in the bay of Casma, located off the Peruvian coast, 370 kilometers north of Callao. Although both sides claimed victory, in reality the three Chilean Navy ships, commanded by Roberto Simpson, defeated the four privateer vessels fighting on behalf of the Confederation.

Overview adapted from Wikipedia, licensed under CC BY-SA 4.0.

Significance

The Battle of Casma was a naval engagement fought in the bay of Casma, off the Peruvian coast, during the War of the Confederation between Chile and the Peru–Bolivian Confederation. Three Chilean Navy ships under Roberto Simpson met four privateer vessels fighting on behalf of the Confederation, commanded by Jean Blanchet. Although both sides claimed victory in the aftermath, Chilean forces effectively defeated the larger Confederation flotilla. The engagement demonstrated Chile's capacity to project naval power along the Peruvian coast, well north of the main port of Callao, underlining the maritime dimension of a war more often characterized by its land campaigns.

Commanders (2)

Chile

Peru–Bolivian Confederation

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4 sibling battles · 2 factions

Last verified June 2026
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