Battle of Maipu
1818 CE · Maipu, Chile
The Battle of Maipu was fought in 1818 CE in Maipu, Chile between Army of the Andes (Argentina and Chile) vs the Spanish royalists; decisive Patriot victory that secured Chilean independence.
Battle of Maipu: quick facts
- Date
- 1818 CE
- Location
- Maipu, Chile
- Belligerents
- Army of the Andes (Argentina and Chile) vs the Spanish royalists
- Commanders
- José de San Martín vs Mariano Osorio
- Result
- decisive Patriot victory that secured Chilean independence.
- Era
- 🌎 Latin American Wars
- Quiz difficulty
- hard

What happened at the Battle of Maipu?
The Battle of Maipu was the decisive engagement of the Chilean War of Independence. San Martin's patriot forces defeated the Spanish royalist army on the plains south of Santiago. After the victory, San Martin embraced the Chilean leader Bernardo O'Higgins and declared Chile's independence finally assured.
Did you know?
After the victory at Maipu, San Martin and the wounded O'Higgins embraced on the battlefield. San Martin reportedly said: 'General, Chile will not forget the name of the brave who fought for her freedom.'
Sources and further reading
- Battle of Maipu on Wikipedia for the full account, historiography and primary sources.
- How BattleGuess compiles and checks battle facts: see the About page.
Entry last reviewed 26 September 2026.