War of the Triple Alliance

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War of the Triple Alliance: The War of the Triple Alliance, also known as The Paraguayan War and the Great War in Paraguay was a South American war fought from 1864-70, between Paraguay and the Triple Alliance of Argentina, the Empire of Brazil and Uruguay.

It was the deadliest and bloodiest inter-state war in Latin American history, devastating Paraguay, which suffered catastrophic losses in population. Almost 70% of its adult male population died and it was forced to cede territory to Argentina and Brazil.

Paraguay fought almost to the last man. According to some estimates, it's pre-war population of 525,000 was reduced to 221,000, of which only 28,000 were men.

Historical Events


Event of interestEvent of Interest

1864-10-12 War of the Triple Alliance begins with Brazilian troops under the command of Gen. João Propício Mena Barreto invading Uruguay

President of Paraguay Francisco Solano López
President of Paraguay
Francisco Solano López

Battle of InterestBattle of Cerro Corá

1870-03-01 War of the Triple Alliance finally ends with the Battle of Cerro Corá and the death of Paraguayan Dictator Francisco Solano López after over 5 years of bloodshed between Paraguay and Argentina, Brazil and Uruguay

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Death of Francisco Solano López by the River Aquidabán, during the Battle of Cerro Corá
Death of Francisco Solano López by the River Aquidabán, during the Battle of Cerro Corá
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