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
Moldova–Ukraine border of Ukraine by land without crossing Moldova; see Palanca, Ștefan Vodă: Border dispute for more. Moldova–Ukraine border The modern Moldova–Ukraine border, the official border between Republic of Moldova and Ukraine, was established after the dissolution of the Soviet Union. The length of the inland border is , of which , is fluvial (i.e., along rivers) and , is land border. About , of it constitutes the "de facto" border between Ukraine and the unrecognized breakaway republic of Transnistria. The border runs from the northern Romania-Moldova-Ukraine tripoint in the northwest of the country, , from the Ukrainian village and border crossing