Siege of Uruguaiana

Siege of Uruguaiana
Part of the Paraguayan War
Capitulation of Paraguayans locked in the city of Uruguaiana (L'Illustration: journal universel, Vol. XLVII, nº 1.197, 1866)
Date August – 18 September 1865 Location Uruguaiana, Brazil Result Allied victory, Paraguayan surrender on 18 September
Belligerents
Paraguay	Empire of Brazil  Argentina  Uruguay
Commanders and leaders
A. Estigarribia	Pedro II Marques de Sousa Count of Eu Bartolomé Mitre Venancio Flores
Strength
8,000 men[1]: 39  8 guns	18,584 men 42 guns 6 steamers (Imperial Brazilian Navy)[1]: 39
Casualties and losses
5,545 surrendered the rest died of hunger and sickness[1]: 40	Unknown

The siege of Uruguaiana was an engagement in the Paraguayan War that began in late August 1865, and ended on 18 September that year when the Paraguayans were forced to surrender due to low food supplies. Paraguayan forces surrendered in spite of President López's order to the Paraguayan commander, Colonel Estigarribia, not to do so. After the allied victory at Uruguaiana, Lopéz withdrew his army from Argentina and Brazil.