South American Community of Nations
Overview
 
The Union of South American Nations ( - UZAN, - UNASUL, - UNASUR) is an intergovernmental
Intergovernmentalism
-A theory of regional integration:The theory is not applied on European integration which rejects the idea of neofunctionalism. The theory, initially proposed by Stanley Hoffmann suggests that national governments control the level and speed of European integration. Any increase in power at...

 union integrating two existing customs union
Customs union
A customs union is a type of trade bloc which is composed of a free trade area with a common external tariff. The participant countries set up common external trade policy, but in some cases they use different import quotas...

s: Mercosur
Mercosur
Mercosur or Mercosul is an economic and political agreement among Argentina, Brazil, Paraguay and Uruguay. Founded in 1991 by the Treaty of Asunción, which was later amended and updated by the 1994 Treaty of Ouro Preto. Its purpose is to promote free trade and the fluid movement of goods, people,...

 and the Andean Community of Nations
Andean Community of Nations
The Andean Community is a customs union comprising the South American countries of Bolivia, Colombia, Ecuador and Peru. The trade bloc was called the Andean Pact until 1996 and came into existence with the signing of the Cartagena Agreement in 1969...

 (CAN), as part of a continuing process of South American integration
Latin American integration
The integration of Latin America has a history going back to Spanish American and Brazilian independence, when there was discussion of creating a regional state or confederation of Latin American nations to protect the area's newly won autonomy...

. It is modeled on the European Union
European Union
The European Union is an economic and political union of 27 independent member states which are located primarily in Europe. The EU traces its origins from the European Coal and Steel Community and the European Economic Community , formed by six countries in 1958...

.

The UNASUR Constitutive Treaty was signed on May 23, 2008, at the Third Summit of Heads of State, held in Brasília
Brasília
Brasília is the capital city of Brazil. The name is commonly spelled Brasilia in English. The city and its District are located in the Central-West region of the country, along a plateau known as Planalto Central. It has a population of about 2,557,000 as of the 2008 IBGE estimate, making it the...

, Brazil. According to the Constitutive Treaty, the Union's headquarters will be located in Quito
Quito
San Francisco de Quito, most often called Quito , is the capital city of Ecuador in northwestern South America. It is located in north-central Ecuador in the Guayllabamba river basin, on the eastern slopes of Pichincha, an active stratovolcano in the Andes mountains...

, Ecuador
Ecuador
Ecuador , officially the Republic of Ecuador is a representative democratic republic in South America, bordered by Colombia on the north, Peru on the east and south, and by the Pacific Ocean to the west. It is one of only two countries in South America, along with Chile, that do not have a border...

.
Quotations

We are here to make Simón Bolívar's dream real. [...] Sooner, rather than later, we shall have a single currency, a single passport... Sooner, rather than later, we shall have a parliament with directly elected representatives for this new nation that we are creating today. — Peruvian President Alejandro Toledo|Alejandro Toledo, December 8|8 December 2004|2004.

 
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