Battle of Curuzú

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Battle of Curuzú
Part of the Paraguayan War
Cándido Lopez - Desembarco del Ejército Argentino frente a las trincheras de Curuzú - Google Art Project.jpg
Brazilian (all blue uniform) and Argentine (blue and red uniform) troops landing in Curuzú
DateSeptember 1–3, 1866
Curuzu, Paraguay
Result Allied victory



Commanders and leaders
Paraguay Colonel Manuel Antonio Gimenez ArgentinaBartolomé Mitre
Empire of Brazil Gen. Baron de Porto Alegre
2,500 men and 13 Cannon[1]:61 4,500 infantry and 3,800 dismounted cavalry
5 Ironclads[1]:61
Casualties and losses
700 killed
1,800 wounded
32 captured[1]:61
159 killed
629 wounded[1]:61

The Battle of Curuzu occurred between September 1 and 3, 1866 during the Paraguayan War.

After the first Battle of Tuyuti, won by the Allies on May 24, 1866, an Allied council of war decided to use their navy to bombard and capture the Paraguayan battery at Curupayti.[1]:60


Map of the part of the Paraguay River where took place the fight of the gunboat Ivaí with the Fortress of Curuzú.

On September 1, five Brazilian ironclads, Bahia, Barroso, Lima Barros, Rio de Janeiro and Brasil began bombarding the batteries at Curuzu, which continued the next day. That is when the Rio de Janeiro hit two mines and sank immediately along with her commander Américo Brasílio Silvado, and 50 sailors.

Simultaneously, 8,391 men of the Brazilian 2nd Corps, under the command of Gen. Baron de Porto Alegre, attacked the Paraguayan batteries at Curuzu, south of the main stronghold of Humaitá on the shores of Paraguay River.[1]:61

On September 3, the fort, commanded by Colonel Jimenez, was stormed. The defenders relied on the advantage of the wetlands and bushes around the fort. The fort was conquered after a heavy bombardment, and the Paraguayan army was pursued until the vicinity of Curupaiti.[1]:61

The ironclad "Rio de Janeiro" had a hole blown in her bottom by a torpedo, and sank almost immediately – the greater part of her crew, together with her captain, being drowned. This was the only ironclad which was sunk during the war.[2]


President Francisco Solano López decimated the 10th Infantry Battalion on September 10, 1866, killing 63 men.[1]:61



  1. ^ a b c d e f g h Hooker, T.D., 2008, The Paraguayan War, Nottingham: Foundry Books, ISBN 1901543153
  2. ^ Thompson, G, 1869, The War in Paraguay, London: Longmans Green and Co., p.169
  • DONATO, Hernâni. Dicionário das batalhas brasileiras. 2a ed, IBRASA, 1996, ISBN 978-85-348-0034-1, 593 pp.