Battle of Corrientes

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Battle of Corrientes
Part of the Paraguayan War
Arrival of Brazilian reinforcements at Corrientes (Paraná) – L'Illustration, 1866.
Date 1865 Location Corrientes Province, Argentina Result Crucial victory of the Triple Alliance
Belligerents
Paraguay Paraguayan Army Paraguayan Navy	Argentina Argentine Army and Militia Argentine Navy Reinforcements:  Empire of Brazil Imperial Army Imperial Navy Marine Corps  Uruguay
Commanders and leaders
Wenceslao Robles	Bartolomé Mitre Viscount of Tamandaré
Strength
37,000 soldiers 5 warships	10,000 soldiers 4 frigates Reinforcements: 15,000 soldiers 17 warships 1 ironclad

The Battle of Corrientes occurred at the beginning of the Paraguayan War during the second stage of the Paraguayan offensive, after the invasion of Mato Grosso at the beginning of 1865.

The invasion of Corrientes, which took place between 1865 and 1866, was the second phase of the Paraguayan War, during which the Paraguayan army occupied the province of Corrientes. In a way, the Paraguayan occupation of Rio Grande do Sul and the subsequent siege of Uruguaiana, in Brazil, can also be included in this phase.

As a result, Argentina and Uruguay entered the war, which previously only referred to Paraguay and Brazil, signing with the latter a secret pact that was called "Triple Alliance". The invasion resulted in absolute failure for the attacking army, and gave rise to the invasion of Paraguayan territory by the armies of the allied countries.