The Union of South American Nations (UNASUR) is a regional intergovernmental organization established in 2008 to promote political, social, and economic integration among its member countries in South America. It aims to foster cooperation on issues such as infrastructure, education, and health, while also addressing regional security and development challenges. UNASUR was formed by twelve South American nations, including Argentina, Brazil, and Chile. The organization has faced challenges in recent years, including political disagreements among member states, which have affected its effectiveness and operations. Despite these issues, UNASUR remains a significant initiative for regional collaboration.