Jutland peninsula is made up of the German Bundesland of Schleswig-Holstein. Schleswig-Holstein has two parts: the former duchies of Schleswig (Danish fief) and Holstein (German fief), both of which have passed back and forth between Danish and German rulers several times. The last adjustment of the Danish–German border followed the Schleswig Plebiscites in 1920 and resulted in Denmark's regaining Northern Schleswig ( or more commonly today: "Sønderjylland"). The historical southern border of Jutland are areas south of Kiel, Husum and Rendsburg, but the river Eider was the border between the former duchies of Schleswig and Holstein, as well as the historical
Third-country economic relationships with the European Union is considered part of the EU single market. Iceland has also signed the Schengen treaty. On 16 July 2009, Iceland applied to join the European Union. Liechtenstein joined the EEA in 1995 and participates in the EU single market. Switzerland referendum to join the EEA in 1992 failed, so Swiss products do not participate in the European single market. However the country recently negotiated two series of bilateral agreements with the Union. The first series, Bilateral Agreements I, consists of seven bilateral agreements and was signed in 1999 (entry into force in 2001), the main part being Free Movement of