Paraguayan War (Triple Alliance War) (1864–1870)

1. Brazil intervenes in Uruguay, raising regional tensions

   Oct 1, 1864Labels: Brazil, Uruguay

   • Britannica
   • EB

2. Paraguay captures Brazilian steamer Marquês de Olinda

   Nov 12, 1864Labels: Marqu s, Paraguay

   • Marqu s Olinda
   • Britannica

3. Paraguay invades Brazil’s Mato Grosso province

   Dec 27, 1864Labels: Mato Grosso, Paraguay

   • Fort Coimbra
   • Mato Grosso

4. Treaty of the Triple Alliance is signed

   May 1, 1865Labels: Treaty of, Buenos Aires

   • Treaty
   • Britannica

5. Brazil wins the decisive naval Battle of Riachuelo

   Jun 11, 1865Labels: Battle of, Brazilian Navy

   • Riachuelo
   • Britannica

6. Paraguayan army surrenders at the Siege of Uruguaiana

   Sep 18, 1865Labels: Siege of, Paraguayan force

   • Uruguaiana
   • Britannica

7. Allies repel Paraguay at the First Battle of Tuyutí

   May 24, 1866Labels: First Battle, Allied armies

   • Tuyut
   • Britannica

8. Allied assault fails at the Battle of Curupayty

   Sep 22, 1866Labels: Battle of, Paraguayan defenses

   • Curupayty
   • Britannica

9. Brazil retakes Corumbá in Mato Grosso

   Jun 13, 1867Labels: Corumb, Brazil

   • Corumb
   • Mato Grosso

10. Brazilian ironclads force the Passage of Humaitá

    Feb 19, 1868Labels: Passage of, Brazilian ironclads

    • Humait
    • Britannica

11. Allied forces occupy Asunción

    Jan 1, 1869Labels: Asunci n, Allied occupation

    • Asunci n
    • Britannica

12. Battle of Cerro Corá kills Solano López, ending war

    Mar 1, 1870Labels: Battle of, Francisco Solano

    • Cerro Cor
    • Britannica

13. Brazil and Paraguay sign Loizaga–Cotegipe Treaty

    Jan 9, 1872Labels: Loizaga Cotegipe, Brazil

    • Loizaga Cotegipe
    • Britannica

14. Argentina and Paraguay sign Machaín–Irigoyen Treaty

    Feb 3, 1876Labels: Macha n, Argentina

    • Macha n Irigoyen
    • Britannica