Portugal–Spain border disputed between the two countries for two hundred years. A microstate existed previously on the border called Couto Misto. Districts on the Portuguese side of the border from North to South: Provinces on the Spanish side of the border from North to South: Portugal and Spain signed the Schengen Agreement in June 1991 which came into effect on 26 March 1995, making Portugal and Spain part of the Schengen area and thus the border then became an Open border. Portugal has since reintroduced border checks several times along the border with Spain, during the UEFA Euro 2004 championships, during the
Poland–Russia border border is 232 km long. For most of this length, the Polish side is in the Warmian-Masurian Voivodeship; the extreme east is in the Podlaskie Voivodeship, and the westernmost segment (on the Vistula Spit) in the Pomeranian Voivodeship. 210 km of the border is land and 22 km is sea. The official demarcation of the boundary was finalized March 5, 1957, in the following terms: When Poland joined the European Union in 2004, this border became one of the borders between the European Union and the non-EU countries. It is one of the five borders that Russia shares with the