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
Castles in Portugal towers. By 1249 the Moors had been expelled from southern Portugal and the nation became the first in Europe to take on its modern borders. The focus of Portuguese castles during this period shifted from lines along east to west flowing rivers, to the towns along the long Portuguese border with rival Castile. The pinnacles of this period were the 13th-century castles built under King Denis, who rebuilt almost every major castle in the land. Until Denis, Portugal’s castles were usually just a three-story keep with one or two rings of walls. New tower keeps were built like the one