Battle of Ituzaingó (Passo do Rosário)
- When
- 1827
- Where
- Passo do Rosário
- Episodes
- 1
The Battle of Ituzaingó occurred on 20 February 1827 during the Cisplatine War. Argentine forces under General Carlos María de Alvear engaged Brazilian troops near the Passo do Rosário. The engagement lasted approximately six hours, resulting in a tactical defeat for the Brazilian Imperial Army. This clash was part of the broader conflict involving the Thirty-Three Orientals and the struggle for control over the Banda Oriental.
Episodes
Background and detail
Background. The conflict arose from the rebellion of the Thirty-Three Orientals in 1825, led by Juan Antonio Lavalleja, against Brazilian rule. The United Provinces supported this movement, leading to a formal declaration of war by Brazil in December 1825. By early 1827, Argentine forces had mobilized, with General Carlos María de Alvear appointed as commander in August 1826. The stage was set for a major confrontation in the border region.
Engagement. The battle began at approximately six in the morning on 20 February 1827 and lasted for about six hours. It was a significant tactical engagement where the Brazilian Imperial Army was defeated by Argentine–Uruguayan troops. The location was Ituzaingó, specifically at the Passo do Rosário. This defeat marked a turning point in the land operations of the Cisplatine War.
People involved
- Carlos María de Alvear · Argentine Commander
- Juan Antonio Lavalleja · Oriental Leader
- Fructuoso Rivera · Oriental Leader
- José de Abreu · Brazilian general active earlier in the campaign (1825); not sourced as a commander at Ituzaingó
Sources
- Battle of Ituzaingó Wikipedia, revision of 2026-09-14
- Cisplatine War Wikipedia, revision of 2026-09-24
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.