Roman–Persian Wars: Emperor Julian arrives at Antioch with a Roman expeditionary force (60,000 men) and stays there for nine months to launch a campaign against the Persian Empire.

The Roman–Persian wars, also called the Roman–Iranian wars, took place between the Greco-Roman world and the Iranian world, beginning with the Roman Republic and the Parthian Empire in 54 BC and ending with the Byzantine and the Sasanian empires in 628 AD. While the conflict between the two…