1967 establishments in South America

The OPANAL (Organismo para la Proscripción de las Armas Nucleares en la América Latina y el Caribe) is an international organization which promotes a non-aggression pact and nuclear disarmament in much of the Americas. In English, its name is the Agency for the Prohibition of Nuclear Weapons in Latin America and the Caribbean. The agency was created as a result of the Treaty of Tlatelolco, signed in 1967 and ratified in 1969, which forbids its signatory nations from using, storing, or transporting nuclear weapons.