Dara and the Roman-Persian fortress frontier

Campaigns on the eastern frontier centered on fortresses that controlled surrounding territory and provided secure bases for raids. Large battles were unusual, so the placement and strengthening of strongholds shaped what each army could do. Rome began Dara only about fifteen miles from Persian-held Nisibis and gradually enlarged its garrison after peace was declared. Persian opposition also forced Rome to evacuate two forts on the Iberian border and abandon another construction attempt associated with Belisarius. Dara therefore mattered not simply as masonry but as a durable Roman position inside a contested frontier system.