Expansion of Macedonia under Philip II a significant problem, blocking the main route into Greece. However, a second route into central Greece was available. In 480 BC, during the Battle of Thermopylae, the Persian king Xerxes had sent his army via a mountain track (the "Anopea") to outflank the pass. From this track, on the western side of Mount Kallidromon, another road led off and descended in Phocis. In 480 BC, a thousand Phocian troops were stationed above Thermopylae to guard the road and prevent a Persian assault on Phocis (though they notably failed to prevent the Persians using "Anopea"). However, in 339 BC, the Greeks
Demophilus of Thespiae Thespians fought against the Persian army at the Battle of Plataea (479 BC). Demophilos is immortalised in many books and movies. In the 1962 movie "The 300 Spartans", Demophilus was portrayed by the Greek actor Yorgos (George) Moutsios. In Thermopylae there is a monument, next to the monument of Leonidas, in memory of him and his men. There is also a monument to Demophilus in the modern Thespies. Demophilus of Thespiae Demophilus ( "Demophilos"), according to Herodotus, was the commander of a contingent of 700 Thespians at the Battle of Thermopylae (480 BC). His father was Diadromes (). Demophilus and