Battle of Monte Caseros

Argentine history

Written by

The Information Architects of Encyclopaedia Britannica

Last updated

June 30, 2026

Quick Summary

The Battle of Monte Caseros, fought on February 3, 1852, was a pivotal event in Argentine history. It resulted in the overthrow of the powerful dictator Juan Manuel de Rosas by Justo José de Urquiza. Urquiza, a military leader and statesman, had formed an alliance with Brazil and Uruguay to challenge Rosas's rule. The battle took place just outside Buenos Aires, and Rosas's defeat led to his escape to England. This victory paved the way for Urquiza to establish the constitutional foundations of modern Argentina, leading to the adoption of a new constitution in 1853.123

Summary created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

3 Britannica Sources

Ask Britannica AI about this topic

Britannica doesn't have a full article on this topic, so we've curated a list of our relevant coverage.

Justo José de Urquiza
…in February 1852 at the Battle of Monte Caseros. In April 1852 he issued the Protocol of Palermo, which authorized him to regulate relations between the provinces. As provisional dictator of Argentina, in August 1852 he summoned to Santa Fe a constitutional congress that in 1853 sanctioned a new constitution…
Read More
…in February 1852 at the Battle of Monte Caseros. In April 1852 he issued the Protocol of Palermo, which authorized him to regulate relations between the provinces. As provisional dictator of Argentina, in August 1852 he summoned to Santa Fe a constitutional congress that in 1853 sanctioned a new constitution…
Read More