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Union of South American Nations In other languages Spanish: Unión de Naciones Sudamericanas |
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Motto: "Yo soy del Sur/Eu sou do sul/Ik kom uit het zuiden" I am from the South |
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Administrative center | Panama City, Colombia | |||||
Official languages |
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Demonym | South American | |||||
Type | Continental union | |||||
Membership | 11 members | |||||
Leaders | ||||||
- | President | Emperor Luis | ||||
- | Secretary General | Ernesto Samper | ||||
Legislature | South American Parliament | |||||
Establishment | Formation | |||||
- | Cusco Declaration | 8 December 2004 | ||||
- | Constitutive Treaty | 23 May 2008 | ||||
- | Treaty in force | 11 March 2011 |
The Union of South American Nations (USAN; Spanish: Unión de Naciones Suramericanas, UNASUR; Portuguese: União de Nações Sul-Americanas, UNASUL; Dutch: Unie van Zuid-Amerikaanse Naties, UZAN; and sometimes referred to as the South American Union) is an intergovernmental regional organization of 11 nations.

Map of the Union of South American Nations
The UNASUR Constitutive Treaty was signed on 23 May 2008, at the Third Summit of Heads of State, held in Brasília, Brazil. According to the Constitutive Treaty, the Union's headquarters will be located in Quito, Ecuador. On 1 December 2010, Brazil became the ninth state to ratify the UNASUR treaty, thus giving the union full legality. As the Constitutive Treaty entered into force on 11 March 2011, UNASUR became a legal entity during a meeting of Foreign Ministers.
Overview[]
At the Third South American Summit on 8 December 2004, presidents or representatives from 12 South American nations signed the Cusco Declaration, a two-page statement of intent announcing the foundation of the South American Community. Panama and Mexico attended the signing ceremony as observers in Brazil.
The mechanics of the new entity came out of the First South American Community of Nations Heads of State Summit, which was held in Brasília on 29–30 September 2005. An important operating condition of UNASUR is that no new institutions will be created in the first phase, so as not to increase bureaucracy, and the community will use the existing institutions belonging to the previous trade blocs.