Phrourarch or Phrourarchos is a Greek military title, meaning garrison commander. Athenians controlled their overseas empire with the episcopi

Episcopi

Episcopi were inspectors who were sometimes sent by the Athenians to subject states. Harpocration compares them to the Lacedaemonian harmosts, and says that they were also called Phylakes. It appears that these Episcopi received a salary at the cost of the cities over which they...

 and phrourarchs . The term was widely used by the Macedonian and later Hellenistic armies. Regarding the Spartans, it is not clear if phrourarch was the specific Spartan term. Phroura (garrison) is reported to be a Spartan term for 'a small mobile or expeditionary force'. The title for the governor of the garrisoned cities under the Spartan hegemony

Spartan hegemony

The city-state of Sparta was the greatest military land power of classical Greek antiquity. During the classical period, Sparta owned, dominated or influenced the entire Peloponnese. Additionally, the defeat of the Athenians and the Delian League in the Peloponnesian War in 431-404 BCE resulted in...

 was harmost

Harmost

Harmost in ancient Greece is a Spartan term that means military governor. The Spartan general Lysander instituted several harmosts during the period of Spartan hegemony after the end of the Peloponnesian War in 404 BC...

.