Chosroes was a prince of a puny stature and a pusillanimous spirit.

Unequal to the fatigues of war, averse to the society of mankind, he withdrew from his capital to a retired palace, which he built on the banks of the River Eleutherus, and in the centre of a shady grove; where he consumed his vacant hours in the rural sports of hunting and hawking.

To secure this inglorious ease, he submitted to the conditions of peace which Sapor condescended to impose; the payment of an annual tribute, and the restitution of the fertile province of Atropatene, which the courage of Tiridates, and the victorious arms of Galerius, had annexed to the Armenian monarchy.
During the long period of the reign of Constantius, the provinces of the East were afflicted by the calamities of the Persian war.

The irregular incursions of the light troops alternately spread terror and devastation beyond the Tigris and beyond the Euphrates, from the gates of Ctesiphon to those of Antioch; and this active service was performed by the Arabs of the desert, who were divided in their interest and affections; some of their independent chiefs being enlisted in the party of Sapor, whilst others had engaged their doubtful fidelity to the emperor.

The more grave and important operations of the war were conducted with equal vigor; and the armies of Rome and Persia encountered each other in nine bloody fields, in two of which Constantius himself commanded in person.
The event of the day was most commonly adverse to the Romans, but in the battle of Singara, heir imprudent valor had almost achieved a signal and decisive victory.