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
Spanish nationality law the acquisition of the nationality of an Iberoamerican country, Andorra, the Philippines, Equatorial Guinea or Portugal, and any other country that Spain may sign a bilateral agreement with. Foreign nationals who acquire Spanish nationality must renounce their previous nationality, unless they are natural-born citizens of an Iberoamerican country, Andorra, the Philippines or Equatorial Guinea. Because Spain forms part of the European Union, Spanish citizens are also citizens of the European Union under European Union law and thus enjoy rights of free movement and have the right to vote in elections for the European Parliament. When in a non-EU country where