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BATTLE // September 17, 1861

Battle of Pavón

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Overview

The Battle of Pavón, a key battle of the Argentine Civil Wars, was fought in Pavón, Santa Fé Province, Argentina on 17 September 1861 between the Army of the State of Buenos Aires and the Army of Republic of the Argentine Confederation. The withdrawal of Urquiza left the field to Mitre.

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

Significance

The Battle of Pavón, fought in Santa Fé Province on 17 September 1861, proved decisive in the Argentine Civil Wars. Commanding forces of 15,000–16,000 against a Confederation army of 16,000–18,000, Bartolomé Mitre secured the field when Justo José de Urquiza withdrew his forces, leaving Buenos Aires in control of the outcome. The Confederation sustained casualties of 1,200–1,300, a loss that undermined its ability to contest Buenos Aires's dominance. The battle effectively shifted the balance of power in the prolonged civil conflict toward Buenos Aires, setting the conditions for Mitre and the Buenos Aires faction to assert authority over the broader Argentine political order.

Forces & casualties

Troop strength

  • State of Buenos Aires15,000–16,000
    medium
  • Argentine Confederation16,000–18,000
    medium

Both sides were near-evenly matched in numbers

Casualties

  • Argentine Confederation1,200–1,300
    medium7% loss rate

Commanders (2)

Argentine Confederation

State of Buenos Aires

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Last verified June 2026
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