Battle of Carrhae (296)
The Battle of Carrhae or the Battle of Callinicum took place in 296 or 297, after the invasion of Mesopotamia and Armenia by the Sasanian king Narseh. The battle took place between Carrhae and Callinicum and was a victory for the Sasanians. Narseh attacked with forces recruited from the Euphrates frontier. He managed to defeat his opponent by good timing.
Galerius and Tiridates III of Armenia escaped with a remnant of their forces. Galerius met Diolectan in Antioch. Eutropius and Theophanes have recorded versions of a celebrated story regarding a public humiliation of Galerius by Diolectan, though the latter retained Galerius in command.
Diolectan later sent reinforcements for Galerius, and the latter managed to defeat the Sassanids two years later at the Battle of Satala.
