History shows us that when empires over-extend themselves, military commanders become semi-independent warlords who usher into place systems of graft and corruption. Such was the case in the Roman Empire in 193 A.D., when Emperor Pertinax’s Praetorian Guard – a combination personal security force for the emperor and elite special forces unit that distinguished itself on distant battlefields – sold out the emperor in exchange for a bribe from an aspirant emperor, Didius Julianus. The Praetorian...
