The Latin American Union (June 6, 1906 – present) is a union between nations in Central and South America. Its founding nations were Mexico, Colombia, Peru, and Brazil. The union was formed with the Treaty of Manaus on June 6, 1906. Four months later, the Latin American Union and the League of World Empires, with the Belem Conference, formed an alliance with one another. Since then, they have aided one another in handling diplomatic negotiations with other nations. On June 6, 2006, the Latin American Union celebrated the 100th Anniversary of its formation, and four months later, the 100th Anniversary of its alliance with the League of World Empires.