Key Facts
- Duration
- 2 years (296–298)
- Decisive battle
- Battle of Satala
- Concluding treaty
- Treaty of Nisibis (298)
- Key Sasanian loss
- Royal household of Narseh captured
- Trade provision
- Nisibis designated sole bilateral trade centre
Strategic Narrative Overview
Early Sasanian offensives succeeded in expelling Tiridates III from Armenia and defeating Roman forces in Mesopotamia. The tide turned decisively at the Battle of Satala, where Galerius launched a surprise assault that routed the Sasanian army and captured Narseh's royal household. Roman forces then advanced deep into Persian territory, restoring control over Mesopotamia and reasserting Roman influence in Armenia and Iberia.
01 / The Origins
The conflict arose from renewed Sasanian expansion under King Narseh following a period of internal consolidation. Narseh moved to reassert Persian influence in the Near East, expelling the Roman client king Tiridates III from Armenia and challenging Roman dominance in Mesopotamia. This aggression reignited the long-standing Roman–Persian rivalry for control over the strategically vital buffer states and trade routes of the region.
03 / The Outcome
The war concluded with the Treaty of Nisibis, which imposed heavily favourable terms on the Sasanians. Persia ceded territories, acknowledged Roman supremacy in Armenia and Iberia, and accepted Nisibis as the sole centre for bilateral trade. The settlement represented the high point of Roman power in the East during Late Antiquity, though its punitive terms sowed resentment that contributed to future conflicts.
Belligerents & Mobilization Analysis
Side A
1 belligerent
Narseh.
Side B
1 belligerent
Galerius, Diocletian, Tiridates III.
Kinetic Engagement Axis
Scroll horizontally to view full axis. Events plotted relatively.