The Battle of Caseros took place on February 3, 1852, in Argentina. It was a significant conflict between the forces of Juan Manuel de Rosas, the governor of Buenos Aires, and the army led by Justo José de Urquiza, the governor of Entre Ríos. This battle marked a turning point in Argentine history, leading to the end of Rosas's rule. The battle resulted in a decisive victory for Urquiza, who aimed to unify Argentina under a federal government. Following the defeat, Rosas fled to exile, and Urquiza became a key figure in the establishment of the Argentine Confederation, shaping the country's political landscape.