Roman–Parthian War of 161–166 participant Ancient Rome
The Roman–Parthian War of 161–166 (also called the Parthian War of Lucius Verus) was fought between the Roman and Parthian Empires over Armenia and Upper Mesopotamia. It concluded in 166 after the Romans made successful campaigns into Lower Mesopotamia and Media and sacked Ctesiphon, the Parthian capital.