Battle of Tacna

South American history

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July 14, 2026

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The Battle of Tacna, also known as the Battle of the Alliance or Battle of Tacna and Arica, was a significant engagement during the War of the Pacific (1879-1883). This conflict was primarily between Chile, Bolivia, and Peru, stemming from disputes over valuable nitrate-rich territory in the Atacama Desert.12

In this battle, fought on May 26, 1880, Chilean forces defeated the combined Peruvian-Bolivian army. The war ultimately resulted in Chile annexing significant territories, including the provinces of Tarapacá, Tacna, and Arica. While Tacna was eventually returned to Peru in 1929, Arica remained under Chilean control. The war had profound economic and political consequences for all involved nations.312

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Bolivia
Loss of the coastal region
…combined Bolivian-Peruvian army at the Battle of Tacna; the fall of Arica the next month signaled the end of effective resistance in the area. Rather than attacking directly inland through the treacherous Andes Mountains, the Chileans ignored Bolivia for the rest of the war and proceeded on an invasion of…
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…combined Bolivian-Peruvian army at the Battle of Tacna; the fall of Arica the next month signaled the end of effective resistance in the area. Rather than attacking directly inland through the treacherous Andes Mountains, the Chileans ignored Bolivia for the rest of the war and proceeded on an invasion of…
Read More