 Their concern led to the Port of Spain Protocol in 1970.In 1970, after the expiration of the Mixed Commission established according to the Geneva Agreement, Presidents Rafael Caldera and Forbes Burnham signed the Port of Spain Protocol, which declared a 12-year moratorium on Venezuela's reclamation of Guayana Esequiba, with the purpose of allowing both governments to promote cooperation and understanding while the border claim was in abeyance.Venezuelan maps produced since 1970 show the entire area from the eastern bank of the Essequibo, including the islands in the river, as Venezuelan territory.