Aeneas Tacticus (4th century BC) was one of the earliest Greek writers on the art of war.
According to Aelianus Tacticus and Polybius, he wrote a number of treatises on the subject; Poliorketica, the only one extant, deals with the best methods of defending a fortified city. An epitome of the whole was made by Cineas, minister of Pyrrhus, king of Epirus. The work is chiefly valuable as containing a large number of historical illustrations.
Aeneas was considered by Casaubon to have been a contemporary of Xenophon and identical with the Arcadian general Aeneas of Stymphalos, whom Xenophon (Hellenica, vii.3) mentions as fighting at the Battle of Mantinea (362 BC).
(As described from Wikipedia, the free encyclopedia)
Tacticus was studied, quoted and referred to by many of the founders of the United States.
TACITUS
THE HISTORIES
TRANSLATED WITH INTRODUCTION AND NOTES
BY
W. HAMILTON FYFE
FELLOW OF MERTON COLLEGE
IN TWO VOLUMES
VOLUME I
VOLUME II