Ejercito
In short
The Ejército Grande was a coalition army led by Justo José de Urquiza that defeated Juan Manuel de Rosas in 1852.
In plain words
It was a large group of soldiers from different regions joined together for a single purpose. This force included men from Entre Ríos, Corrientes, Brazil, and Uruguay to change the leadership of Argentina.
A simple example
The army used 4,000 professional Brazilian soldiers alongside local troops to invade the provinces of Santa Fe and Buenos Aires.
Why it matters
Its victory ended the long rule of Juan Manuel de Rosas. This shift helped reshape the political structure of the Argentine Confederation.
Easy to mix up
Do not confuse this 19th-century coalition with modern military forces using the same Spanish name.