Conflicts & Resolutions · Treaty

Treaty of the Triple Alliance

1865 · 19th century · Part of the Paraguayan War

The Treaty of the Triple Alliance was signed in secret on 1 May 1865 in Buenos Aires by Argentina, Brazil and Uruguay after Paraguay invaded Argentine territory. The allies pledged to fight until the regime of Francisco Solano López was removed and set out the territory Paraguay would lose, terms that made the ensuing war a war of annihilation.

Treaty of the Triple Alliance
Image: Luis Candido Lopez · Public domain · Wikimedia Commons

Mentioned in 2 profiles

Argentine RepublicMilitaryRepublic of ParaguayMilitary

See also

Cite this entry
APA
The Epoch Institute. (2026). Treaty of the Triple Alliance. In The Epoch Institute Encyclopedia. https://the-epoch-institute.org/encyclopedia/treaty-of-the-triple-alliance
MLA
“Treaty of the Triple Alliance.” The Epoch Institute Encyclopedia, The Epoch Institute, 2026, https://the-epoch-institute.org/encyclopedia/treaty-of-the-triple-alliance. Accessed .
Chicago
The Epoch Institute. “Treaty of the Triple Alliance.” The Epoch Institute Encyclopedia. 2026. https://the-epoch-institute.org/encyclopedia/treaty-of-the-triple-alliance.
Harvard
The Epoch Institute (2026) ‘Treaty of the Triple Alliance’, The Epoch Institute Encyclopedia. Available at: https://the-epoch-institute.org/encyclopedia/treaty-of-the-triple-alliance (Accessed: ).

Last reviewed October 2026Random entry ↻