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
Bulgaria–Romania border two countries, albeit often jointly (once per crossing). Bulgaria–Romania border The Bulgaria–Romania border is the state border between Bulgaria and Romania. For most of its length, the border follows the course of the lower Danube River up until the town of Silistra, where the river continues north into the Romanian territory. East of that point, the land border passes through the historical region of Dobruja, dividing it into Northern Dobruja in Romania and Southern Dobruja in Bulgaria. The Bulgaria–Romania border is an internal border of the European Union. However, as of neither country is part of the Schengen Area. As