There are a number of association football clubs around the world that are based in one country/territory but play in another's league. Conditions for competing in a "foreign" league, as well as in a continental/confederational competition, are set case-by-case by the international association football federation as well as the respective confederation and national association football associations involved. Clubs which are located in defunct nations that merged with others, new nations separated from others, or which stopped competing in a nation's league system because their locale was transferred to another nation, are not included in this article.