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BATTLE // August 1, 1843

Great Siege of Montevideo

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Overview

The Great Siege of Montevideo, named as Sitio Grande in Uruguayan historiography, was the siege suffered by the city of Montevideo between 1843 and 1851 during the Uruguayan Civil War.

Overview adapted from Wikipedia, licensed under CC BY-SA 4.0.

Significance

The Great Siege of Montevideo, known in Uruguayan historiography as the Sitio Grande, was a defining episode of the Uruguayan Civil War, lasting from 1843 to 1851. The siege placed the city of Montevideo under sustained military pressure from forces of the Cerrito Government, commanded by Manuel Oribe, while the Defense Government inside the city held out over nearly a decade. The confrontation drew in commanders of broad regional and international standing — including Giuseppe Garibaldi on the defending side and Argentine naval commander William Brown on the besieging side — reflecting how deeply the conflict was entangled with Argentine political rivalries and broader River Plate power struggles. The protracted nature of the siege made Montevideo itself the central military and political prize of the civil war, with the city's survival or fall determining which faction and which external sponsors would shape Uruguay's postwar order.

Forces & casualties

Troop strength

  • Cerrito Government1,843
    medium
  • Defense Government1,843
    medium

Both sides were near-evenly matched in numbers

Commanders (15)

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2 sibling battles · 0 factions

Last verified June 2026
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