MERCOSUR, or the Southern Common Market, is a regional trade bloc in South America established in 1991. It includes countries like Argentina, Brazil, Paraguay, and Uruguay, aiming to promote free trade and economic integration among its members. The organization facilitates the movement of goods, services, and people across borders, enhancing economic cooperation. Over the years, MERCOSUR has expanded its influence by including associate members such as Chile and Bolivia. The bloc also engages in trade negotiations with other regions, seeking to strengthen economic ties and improve trade relations globally.