Note 99 — Chapter VI · THE MARCH OF THE PERSIAN ARMY. PREPARATIONS IN GREECE.
Reading edition
The physical difficulties of the interior of the Balkan peninsula, together with the practical question of commissariat, render it probable that Herodotus is mistaken as to the nature of this inland march, and of the troops which undertook it. The main body of the army must almost certainly have pursued the coast road, which was easy, supplied with depôts of stores, and in touch with the fleet. The divisions which went inland were probably large detachments sent to inspire awe in the breasts of the inland tribes, so as to discourage them from any attempt to cut the line of communications.