An
enclave is any portion of a state that is entirely surrounded by the territory of a single other state. An
exclave is a portion of a state geographically separated from the main part by surrounding territory. Many exclaves are also enclaves.
Enclave is sometimes used improperly to denote a territory that is only partly surrounded by another state. Examples of enclaved countries include
San Marino and
Lesotho. Examples of exclaves include
Nakhchivan and
Campione d'Italia. Campione d'Italia is also an enclave.