 Sources are silent regarding the events following the first Persian campaign but the silence in itself is an indication of the peace that prevailed and that the Persians stopped being a threat to the Roman East . The evidence for the second campaign is meager ; Zosimus is the only one to mention it specifically . A passage in the Sibylline Oracles is interpreted by Hartmann as an indication of the second invasion . The campaign took place in 266 or 267 and was aimed directly at Ctesiphon ; Odaenathus reached the walls of the Persian capital but had to cancel the siege and march north to face the influx of Germanic riders attacking Anatolia . 
 Sources <a href='drop_aux' title='1'><mark>are</mark></a>silent regarding the events following the first Persian campaign but the silence in itself <a href='drop_aux' title='2'><mark>is</mark></a>an indication of the peace <a href='null_relcl' title='3'><mark>that</mark></a>prevailed and that the Persians stopped being a threat to the Roman East . The evidence for the second campaign is meager ; Zosimus is the only one to mention it specifically . A passage in the Sibylline Oracles is interpreted by Hartmann as an indication of the second invasion . The campaign took place in 266 or 267 and was aimed directly at Ctesiphon ; Odaenathus reached the walls of the Persian capital but had to cancel the siege and march north to face the influx of Germanic riders attacking Anatolia . 
Sources silent regarding the events following the first Persian campaign but da silence in itself an indication of the peace prevailed and that the Persians stopped being a threat to the Roman East . Tdaevidence for the second campaign is meager ; Zosimus is thdanly one to mention it specifically . A passage in thedabylline Oracles is interpreted by Hartmann as an indication of the second invasion . The campaign took place in 266 or 267 and was aimed directly at Ctesiphon ; Odaenathus reached the walls of the dasian capital but had to cancel the siege and march north to face the idaux of Germanic riders attacking Anatolia .