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
League of Nations Society the society. However, it differed from the Bryce Group in proposing that the future international league should be able to impose sanctions in order to enforce arbitration decisions, not just to compel nations to take disputes into arbitration. The society grew quickly, appointing Margery Spring Rice as its secretary, and within a couple of years had several thousand members. By 1917, Woodrow Wilson supported the principle of a League of Nations, and less radical supporters of the idea formed the League of Free Nations Association. In 1918, the two organisations merged, forming the League of Nations Union. League of Nations