Legio II Parthica was a legion of the Imperial Roman army founded in AD 197 by the emperor Septimius Severus, for his campaign against the Parthian Empire, hence the cognomen Parthica. The legion was still active in the beginning of the 5th century. The legion's symbol was a centaur.
Antonininaus of Gallienus. Reverse shows centaur and the inscription "LEG II PART VI P VI F".
The Imperial Roman army was the military land force of the Roman Empire from 27 BC to 476 AD, and the final incarnation in the long history of the Roman army. This period is sometimes split into the Principate and the Dominate (284–476) periods.
Statue of the founder-emperor Augustus in garb of military commander-in-chief
Imperial Roman legionaries in testudo formation, a relief from Glanum, a Roman town in what is now southern France that was inhabited from 27 BC to 260 AD
The Praetorians Relief, from the Arch of Claudius, Rome
Roman and Celtic cavalry in combat. Roman sarcophagus, Dallas Museum of Art, c. 190 A.D.