Article · Wikipedia archive · Last revised Jun 22, 2026

Cusco Declaration

The Cusco Declaration, formally titled Preamble to the Foundation Act of the South American Union, is a two-page declaration of intent signed by 12 South American countries during the Third South American Summit on 8 December 2004 in Cusco, Peru. It announces the foundation of the Union of South American Nations. It called for a regional parliament, a common market and a common currency.

Last revised
Jun 22, 2026
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Source
Cusco Declaration
Created8 December 2004 (2004-12-08)
LocationCusco, Peru
Signatories12 South American countries
PurposeDeclaration of intent to establish the Union of South American Nations

The Cusco Declaration, formally titled Preamble to the Foundation Act of the South American Union, is a two-page declaration of intent signed by 12 South American countries during the Third South American Summit on 8 December 2004 in Cusco, Peru. It announces the foundation of the Union of South American Nations.1 It called for a regional parliament, a common market and a common currency.

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