User blog comment:Tesla Man/Rise of the TDBU: Alexander the Great versus Xerxes/@comment-422690-20120320173747/@comment-181289-20120323012105

Yes but the Athenian Navy would be just as harmful to land invasion given the Army would ahve to be supplied by sea, this was why Darius didn't invade by land, his army would be reliant on weather or not the supply ships got past the greek ships, is they didn't the army would starve and quickly be forced to either retreat back to Persia or fight in a near crippled state. At least wit ha Sea invasion your ground forces would arrive near the battle feild both well supplied and with a soruce if escape.