Greek military ranks

Modern Greek military ranks are based on Ancient Greek and Byzantine terminology.

In the army and air force, these names are often based on the unit or post that a holder of each rank usual commands. For example, a tagmatarchis is in charge of a tagma, which is derived from an Ancient Greek word translatable as "command", "order", or "class", and in modern Greek is a unit equivalent to a battalion in other armies; hence a modern tagmatarchis is a rank equivalent to major in other armies. Similarly, a lochagos normally commands a lochos (a word that originally meant "warband") , which in Ancient Greece was a 100-strong hoplite unit, but in modern Greek usage is equivalent to an infantry company. Hence a lochagos is the equivalent of a captain in other armies, and the modern Greek equivalent of an army first lieutenant is the modern neologism ypolochagos: literally, "sub-captain". Likewise, the modern Greek equivalent of a sergeant is a lochias.

The suffixes -agos and -archos (or -arches), which are often found in Greek rank names, are derived from the roots agein "to lead" and archein "to rule", respectively.