The Swiss football league system, is a series of interconnected leagues for association football clubs in Switzerland, with seven teams from Liechtenstein, and one each from exclaves of Germany and Italy, also competing. The system has a hierarchical format with promotion and relegation between leagues at different levels, allowing even the smallest club the possibility of ultimately rising to the very top of the system.
Because Liechtenstein does not have its own national league, its teams play in the Swiss leagues; see List of association football clubs playing in the league of another country.
References
Swiss football league system Wikipedia(Text) CC BY-SA