シーランド公国
The Sealand national football team represents the Principality of Sealand. It is not a member of FIFA or UEFA, but was an associate member of the N.F.-Board, an organisation for teams who are not members of FIFA. They were admitted to the N.F.-Board as a provisional member in 2005 and as an associate member in 2006, before the organisation became defunct in 2013.