Aeneas Tacticus (Greek: Αἰνείας ὁ Τακτικός; fl. 4th century BC) was one of the earliest Greek writers on the art of war and is credited as the first author to provide a complete guide to securing military communications. Polybius described his design for a hydraulic semaphore system.
According to Aelianus Tacticus and Polybius, he wrote a number of treatises (Ὑπομνήματα Hypomnemata) on the subject. The only extant one, How to Survive under Siege (Greek: Περὶ τοῦ πῶς χρὴ πολιορκουμένους ἀντέχειν), 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 Isaac Casaubon to have been a contemporary of Xenophon and identical with the Arcadian general Aeneas of Stymphalus, whom Xenophon (Hellenica, vii.3) mentions as fighting at the Battle of Mantinea (362 BC).
- Newton, David E. (1997). Encyclopedia of Cryptography. Santa Barbara California: Instructional Horizons, Inc. p. 7.
- This article incorporates text from a publication now in the public domain: Chisholm, Hugh, ed. (1911). Encyclopædia Britannica (11th ed.). Cambridge University Press.
- Aeneas Tacticus, Asclepiodotus, Onasander. Translated by Illinois Greek Club. Loeb Classical Library. ISBN 0-674-99172-9
- Whitehead, David. 2002, Aineias Tacticus. How to Survive Under Siege. Second edition (First edition 1990). Bristol Classical Press. ISBN 978-1-85399-627-6.
- Jenkins, Thomas E. 2006. "Epistolary Warfare" in Intercepted Letters: Epistolarity and Narrative in Greek and Roman Literature. Lexington Books. pp. 51–59. ISBN 978-0-7391-1714-9.