Portugal–Spain border NATO 2010 Lisbon summit and during Pope Francis's visit to Fátima in May 2017. Portugal's maritime borders, also known as the Exclusive economic zone of Portugal is currently disputed by Spain in the Savage Islands area, between Madeira and the Canary Islands. The main crossing point between Portugal and Spain is Vilar Formoso - Fuentes de Oñoro. Other important crossings are Caminha and Bragança to Galicia, Portalegre and Elvas to Badajoz, and Castro Marim and Vila Real de Santo António to Ayamonte. Bridges across the border include the Guadiana International Bridge and the Lower Guadiana International bridge. A zipline across
Certificate of Loss of Nationality Certificate of Loss of Nationality The Certificate of Loss of Nationality of the United States (CLN) is form DS-4083 of the Bureau of Consular Affairs of the United States Department of State which is completed by a consular official of the United States documenting relinquishment of United States nationality. The form is prescribed by the Secretary of State under the Immigration and Nationality Act of 1952. A CLN is used only to document a loss of U.S. nationality and it does not affect the loss of U.S. nationality itself. However some provisions of U.S. regulations require a CLN be issued