Recently I have begun studying the similarities and influences of Greek and Roman culture. so far I have mainly focused on one society. The Old Republic. They are surprisingly similar to ancient Greece and Rome. First, politically, both were representative democracies, focused mainly on senatorial representation, with one main political leader selected from within the senate. Military is a mix between Rome and Greece. They do rely on the method of having large numbers of organized troops, who make up for individual weakness with numbers and organization, namely, clone troopers. However, they also use the Greek method of having a relatively small number of incredibly skilled warrior, such as Spartans, most notably I the republic with the Jedi and certain clone commandos. Actually, almost every military has an 'elite' commando.

Greek
Spartan

Mandalorian Clone commandos of the Old Republic

A Bx-Series commando droid. Armored in an advanced alloy and remarkable AI.

An Urk-Hai: a tougher and smarter breed of orc. Were saruman's Shock troops during the 'ring ars'

A Predator: One of the greatest hunters known to anyone, able to hunt anything from a Xenomorph to a Basilisk Leviathan

A Cyberdisc: A advanced and surprisingly organi robotic warrior, armed with advanced energy weaponry, grenade launcher and thich armor makes this one of the toughest and deadliest soldiers in the Ethereal collective

(Disclaimer: I don't own either photo, they belong to their respective owners,)