Schengen AreaThe Schengen Area (ˈʃɛŋən , ˈʃæŋən) is an area comprising European countries that have officially abolished many passport and many other types of border control at their mutual borders. Being an element within the wider area of freedom, security and justice policy of the European Union (EU), it mostly functions as a single jurisdiction under a common visa policy for international travel purposes. The area is named after the 1985 Schengen Agreement and the 1990 Schengen Convention, both signed in Schengen, Luxembourg.
Border controlBorder control refers to measures taken by governments to monitor and regulate the movement of people, animals, and goods across land, air, and maritime borders. While border control is typically associated with international borders, it also encompasses controls imposed on internal borders within a single state. Border control measures serve a variety of purposes, ranging from enforcing customs, sanitary and phytosanitary, or biosecurity regulations to restricting migration.
Travel documentA travel document is an identity document issued by a government or international entity pursuant to international agreements to enable individuals to clear border control measures. Travel documents usually assure other governments that the bearer may return to the issuing country, and are often issued in booklet form to allow other governments to place visas as well as entry and exit stamps into them. The most common travel document is a passport, which usually gives the bearer more privileges like visa-free access to certain countries.
Common Travel AreaThe Common Travel Area (CTA; Comhlimistéar Taistil, Ardal Deithio Gyffredin) is an open borders area comprising the United Kingdom, Ireland, Isle of Man, and the Channel Islands. The British Overseas Territories are not included. Based on agreements that are not legally binding, the internal borders of the CTA are subject to minimal controls and can normally be traversed by British and Irish citizens with minimal identity documents (with certain exceptions).
FrontexThe European Border and Coast Guard Agency, commonly known as Frontex (from French: Frontières extérieures for "external borders"), is an agency of the European Union headquartered in Warsaw, Poland, exercising in coordination with the border and coast guards of member states the border control of the European Schengen Area, a task within the area of freedom, security and justice domain. Frontex was established in 2004 as the European Agency for the Management of Operational Cooperation at the External Borders and is primarily responsible for coordinating border control efforts.
