Union of South American Nations in Mitad del Mundo, Ecuador, where the cornerstone was laid for the headquarters of the General Secretariat of the Union. In April 2018, six countries suspended membership: Argentina, Brazil, Chile, Colombia, Paraguay and Peru. In August 2018, Colombia announced its withdrawal from the organization. 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
Latin America and the League of Nations Latin America and the League of Nations Nine Latin American nations became charter members of the League of Nations when it was founded in 1919. The number grew to fifteen states by the time the first League Assembly met in 1920 and later, several others joined in the decade that followed. Although only Brazil had any participation in World War I (and a minor role at that), these nations supported the idealistic principles of the League and felt it offered some measure of juridical protection from the interventionist policies of the United States in the period between the Spanish–American War