Portugal–Spain border Portugal–Spain border The Portugal–Spain border is the international boundary between Portugal and Spain. Referred to as "la Raya" in Spanish and "A Raia" in Portuguese (the stripe), the current demarcation is almost identical to that defined in 1297 by the Treaty of Alcañices. It is one of the oldest borders in the world. The Portugal–Spain border is 1,214 km (754 miles) long and considered the longest uninterrupted border within the European Union. The border is not defined for 18 km (11 miles) between the Caia river and Ribeira de Cuncos, because of the disputed status of Olivenza, which has been
Denmark–Sweden border was still a country although under practical control by Germany). The Nordic Passport Union of 1958 removed passport checks at the border. However, custom checks remained in force between Denmark and other Nordic countries until the Schengen acquis of 2001. There was no land border with Denmark before July 2000 when the Øresund Bridge was opened, which had relaxed customs checks from the start. With the European migrant crisis, Sweden re-introduced stricter border controls in November 2015. Since 4 January 2016, Sweden has required carriers to perform identity checks on the Danish side of the Denmark–Sweden border, while still keeping