It's not clear to me why Roman Empire would be relevant in this case. Society, economy, politics, military, culture, technology, wars, the life of soldiers... a lot of things were different back then.
There are always lessons in history, even accounting for the differences between an agrarian and digital society. Private militaries have proven to be rather fickle when it comes to rights v. might.
There are always lessons in history, even accounting for the differences between an agrarian and digital society. Private militaries have proven to be rather fickle when it comes to rights v. might.