Probus, Aurelian's prodigy and friend, rose to the purple shortly after Aurelian's murder just like his mentor had, through sheer grit and merit.  In five short years he pursued Aurelian's policies brilliantly, with a deftness of touch perhaps that Aurelian lacked.  He was everywhere at once, East and West, North and South, campaigning north of the Rhine like Germanicus and Drusus, showing the Persians that Rome was no longer afraid, in short, helping to reinforce Aurelian's miracle.  To friend and foe alike, lest there be any doubt, thanks to Probus all knew - ROME WAS BACK.