2nd-century Greek military writer
In hoc codice continentur Helianus De instruendis aciebus et Onosander De optimo imperatore, c. 1480, by Aelianus Tacticus
Aelianus Tacticus (Greek: Αἰλιανὸς ὀ Τακτικός; fl. 2nd century AD), also known as Aelian (), was a Greek military writer who lived in Rome.
