Septimius Severus entered Rome in AD 197 as undisputed emperor, following several years of bloody civil war. He stationed a full legion near Rome to ensure that no one could do what he had done: conquer his own empire. Septimius was a friend to his soldiers, debasing his own currency to increase soldier soldiers pay. He then turned back to what he knew best: conquest--launching a campaign against the Parthian Empire in Persia.