But it is, perhaps, as likely that he retired, simply because he had effected the object with which he engaged in the war.

It was a constant practice of the Romans to advance their frontier by building strong towns on or near a debatable border, which attracted to them the submission of the neighboring district.

The recent building of Theodosiopolis in the eastern part of Roman Armenia had been an instance of this practice.

It was perhaps being pursued elsewhere along the Persian border, and the invasion of Isdigerd may have been intended to check it.

If so, the proviso of the treaty recorded by Procopius would have afforded him the security which he required, and have rendered it unnecessary for him to continue the war any longer.
His arms shortly afterwards found employment in another quarter.