But the event justified him.

In a war which lasted twenty-seven years, he fought numerous pitched battles with the Romans, and was never once defeated.

He proved himself greatly superior as a general to Constantius and Jovian, and not unequal to Julian.

By a combination of courage, perseverance, and promptness, he brought the entire contest to a favorable issue, and restored Persia, in A.D.
363, to a higher position than that from which she had descended two generations earlier.

If he had done nothing more than has already come under our notice, he would still have amply deserved that epithet of "Great" which, by the general consent of historians, has been assigned to him.