Battle of Curupayty
1866 · Curupayty (modern Ñeembucú Department, Paraguay) · World · Modern
The allies' frontal assault on the trenches failed with several thousand casualties, while Paraguayan losses were very light
Belligerents
Paraguayan army
- Commanders
- José Eduardo Díaz
- Strength
- c. 5,000 men
Triple Alliance forces
- Commanders
- Mitre, Tamandaré
- Strength
- c. 20,000 men
Background
After their victory at Tuyutí, the allies advanced on the fortress of Humaitá, and Curupayty was a defensive position on its outskirts. Taking advantage of allied hesitation, Paraguayan engineers hurriedly built strong trenches.
Course of the battle
- Rushing to repair fortificationsTaking advantage of more than ten days of allied hesitation, the Paraguayan army built deep trenches with abatis and gun emplacements
- Naval bombardmentThe Brazilian squadron bombarded the position but failed to destroy the fortifications
- Frontal assaultAllied infantry charged through swamps and abatis under heavy fire and fell in droves
- Offensive checkedThe allies retreated, Mitre was harshly criticized, and the war stalled for nearly a year
Outcome at a glance
| Date | 1866 |
|---|---|
| Place | Curupayty (in today's Ñeembucú Department, Paraguay) |
| Result | The allies' frontal assault on the trenches failed with several thousand casualties, while Paraguayan losses were very light |
| Winner | Paraguay |
| Casualties | Allied casualties are estimated at 4,000–9,000; Paraguayan losses about 100 |
| Territorial change | Allied offensive stalls for a year |
Impact
Curupayty was Paraguay's greatest victory in the War of the Triple Alliance and the allies' most costly defeat.
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