The notion of closer hemispheric union in America was first put forward by Simón Bolívar who, at the 1826 Congress of Panama, proposed creating a league of American republics, with a common military, a mutual defense pact, and a supranational parliamentary assembly. This meeting was attended by representatives of Gran Colombia (comprising the modern-day nations of Colombia, Ecuador, Panama, and Venezuela), Peru, the United Provinces of Central America, and Mexico, but the grandly titled "Treaty of Union, League, and Perpetual Confederation" was ultimately only ratified by Gran Colombia. Bolívar's dream soon floundered with civil war in Gran Colombia, the disintegration of Central America, and the emergence of national rather than continental outlooks in the newly independent American republics. Bolívar's dream of American unity was meant to unify Latin American nations against imperial domination by external power.
The pursuit of regional solidarity and cooperation again came to the forefront in 1889–90, at the First International Conference of American States. Gathered together in Washington, D.C., 18 nations resolved to found the International Union of American Republics, served by a permanent secretariat called the Commercial Bureau of the American Republics (renamed the "International Commercial Bureau" at the Second International Conference in 1901–02). These two bodies, in existence as of 14 April 1890, represent the point of inception to which today's OAS and its General Secretariat trace their origins.
At the Fourth International Conference of American States (Buenos Aires, 1910), the name of the organization was changed to the "Union of American Republics" and the Bureau became the "Pan American Union".
The experience of World War II convinced hemispheric governments that unilateral action could not ensure the territorial integrity of the American nations in the event of extra-continental aggression. To meet the challenges of global conflict in the postwar world and to contain conflicts within the hemisphere, they adopted a system of collective security, the Inter-American Treaty of Reciprocal Assistance (Rio Treaty) signed in 1947 in Rio de Janeiro.
Photo taken in Washington, DC on May 5, 2010.
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