HistoryData
war1812

1812 engagement of the Argentine War of Independence

September 25, 1812

Belgrano's defeat of a numerically superior royalist force at Tucumán halted the royalist advance into Argentina's northwest during the War of Independence.

Quick Facts

Year
1812
Category
war

Key Facts

Dates
24–25 September 1812
Patriot commander
General Manuel Belgrano
Royalist commander
General Pío de Tristán
Royalist numerical advantage
Approximately two-to-one over patriot forces
Conflict
Argentine War of Independence

Location

Map of San Miguel de Tucumán, ArgentinaMap of San Miguel de Tucumán, ArgentinaSan Miguel de Tucumán, Argentina

Cause → Event → Consequence

Cause

Royalist forces under General Pío de Tristán advanced southward into Argentina's northwest, threatening patriot-held territory. The Army of the North, though significantly outnumbered at roughly two-to-one, moved to intercept the royalist column near San Miguel de Tucumán to prevent further encroachment on the nascent Argentine state.

Event

On 24 and 25 September 1812, General Manuel Belgrano led the Army of the North in battle against the royalist forces near San Miguel de Tucumán. Despite being heavily outnumbered, the patriot troops defeated Tristán's royalist army, forcing a halt to the royalist offensive into the Argentine interior.

Consequence

The royalist advance on Argentina's northwest was stopped. Combined with the subsequent patriot victory at the Battle of Salta on 20 February 1813, the outcome at Tucumán enabled Argentine forces to consolidate and reaffirm control over their northwestern territorial borders.

Belligerents & Mobilization Analysis

Side A

1 belligerent

Army of the North (United Provinces of the Río de la Plata)
Key Commanders

Manuel Belgrano.

Side B

1 belligerent

Royalist forces (Spanish Crown)
Key Commanders

Pío de Tristán.

Outcome
Patriot victory; royalist advance on Argentina's northwest halted

Timeline Context

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