https://www.worldatlas.com/articles/what-is-the-union-of-south-american-nations.html
12 South American countries are members of the an intergovernmental regional organization, the Union of South American Nations.
south american nationsunion
https://www.batimes.com.ar/news/sports/south-american-countries-pitch-joint-hosting-of-2030-world-cup.phtml
Officials from Argentina, Uruguay, Paraguay and Chile formally announce candidacy to jointly host the 2030 World Cup.
south american nationsworld cuppitchjointhosting
https://dnyuz.com/2026/01/17/eu-and-mercosur-bloc-of-south-american-nations-sign-trade-deal-to-end-quarter-century-of-talks-just-as-trump-hits-europe-with-new-tariffs/
The European Union and the Mercosur bloc of South American countries formally signed a long-sought landmark free trade agreement on
south american nationseumercosurblocsign