Res Gestae

Ammianus Marcellinus

Ammianus Marcellinus. Ammianus Marcellinus, with an English translation, Vols. I-III. Rolfe, John C., translator. Cambridge, MA; London: Harvard University Press; W. Heinemann, 1935-1940 (printing).

He also charged them, when they left, to be on their guard as they marched, as if the enemy were to meet them at once, and at night to keep watch and ward, so as not to be surprised by a hostile attack.