Conflicts & Resolutions · War

Chaco War

1932–1935 · 20th century

The Chaco War was fought between Bolivia and Paraguay from 1932 to 1935 over the northern Gran Chaco, a region believed to hold oil. Paraguay, under José Félix Estigarribia, won most of the battles, and some 90,000 soldiers died on both sides, many from thirst and disease. The peace treaty of 1938, mediated with Argentine help, gave Paraguay most of the disputed territory.

Chaco War
Image: Doctor Carlos De Sanctis · Public domain · Wikimedia Commons

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Cite this entry
APA
The Epoch Institute. (2026). Chaco War. In The Epoch Institute Encyclopedia. https://the-epoch-institute.org/encyclopedia/chaco-war
MLA
“Chaco War.” The Epoch Institute Encyclopedia, The Epoch Institute, 2026, https://the-epoch-institute.org/encyclopedia/chaco-war. Accessed .
Chicago
The Epoch Institute. “Chaco War.” The Epoch Institute Encyclopedia. 2026. https://the-epoch-institute.org/encyclopedia/chaco-war.
Harvard
The Epoch Institute (2026) ‘Chaco War’, The Epoch Institute Encyclopedia. Available at: https://the-epoch-institute.org/encyclopedia/chaco-war (Accessed: ).

Last reviewed October 2026Random entry ↻