Battle of Vuelta de Obligado on the Paraná River
- When
- 1845–1846
- Where
- Paraná River bend; South America
- Episodes
- 2
The Battle of Vuelta de Obligado occurred on 20 November 1845 on the Paraná River. Argentine forces under General Lucio Norberto Mansilla defended against an Anglo-French squadron. Although narrowly defeated, the engagement caused significant damage to the victors' ships and generated political support for Argentina in South America.
Episodes
- Battle of Vuelta de Obligado
Argentine forces under Mansilla defended the Paraná River against an Anglo-French squadron, suffering a narrow defeat but damaging enemy ships.
- Diplomatic Reaction in South America
The battle generated political support for Argentina, prompting Bolivia to protest the Anglo-French intervention.
Background and detail
Background. The battle was part of the Anglo-French blockade imposed in 1845 to support the Colorado Party in Uruguay. The Europeans sought direct trade with interior provinces, bypassing Buenos Aires and Rosas' authority. General Mansilla received forces from Martín García to fortify a point on the Paraná River, selecting the narrow bend known as Vuelta de Obligado.
The Engagement. An Anglo-French squadron of eleven warships sailed through the Paraná River in the first days of November 1845. The Argentine defense relied on cannons of caliber 20, significantly smaller than the average caliber 80 guns of the Anglo-French navy, underscoring the technological disparity facing the defenders.
Political Impact. News of the battle spread across South America in 1846. Bolivia's president José Ballivián, previously opposed to Rosas, instructed his diplomat to congratulate Rosas for the action at Obligado and protest the Anglo-French intervention as unjust against the rights of the Americas.
People involved
- Lucio Norberto Mansilla · Commander of Argentine defense forces
- Juan Manuel de Rosas · Governor of Buenos Aires
- José Ballivián · President of Bolivia
Sources
- Battle of Vuelta de Obligado Wikipedia, revision of 2026-08-22
- Anglo-French blockade of the Río de la Plata Wikipedia, revision of 2026-09-13
Machine-drafted from the cited Wikipedia passages and checked by a reviewing model, not by a human editor. Every passage cites the revision it was written from; dates and places follow those passages.