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
U.S. Customs and Border Protection quality of life in border communities. In some areas, Agents are deputized or have peace-officer status and use it to enforce local and state/territory laws. More than 20,000 Border Patrol Agents safeguard nearly 6,000 miles of land border the United States shares with Canada and Mexico, and more than 2,000 miles of coastal waters. One of the most important activities for a United States Border Patrol Agent is "line watch". This involves the detection, prevention and apprehension of terrorists, illegal aliens and smugglers of both aliens and contraband at or near the land border by maintaining surveillance from a covert