Antony's Atropatene campaign

Antony's Atropatene campaign, also known as Antony's Parthian campaign, was a military campaign by Mark Antony, the eastern triumvir of the Roman Republic, against the Parthian Empire under Phraates IV. Julius Caesar had planned an invasion of Parthia but died before he could implement it. In 40 BC, the Parthians were joined by Pompeian forces and briefly captured much of the Roman East, but a force sent by Antony defeated them and reversed their gains.

Source: Wikipedia — Antony's Atropatene campaign (CC BY-SA 4.0)