Parthian activity had forced Demetrius II to …
Years: 138BCE - 138BCE
Parthian activity had forced Demetrius II to take action in 139 BCE.
Marching against Mithridates I, king of Parthia, he was initially successful, but is defeated in the Iranian mountains and taken prisoner the following year.
This effectively ends Seleucid claims to any land east of the Euphrates river.
The Babylonian province of the Seleucid empire becomes Parthian, but …
