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
Prosody (Greek) the 2nd foot, as in lines 2 and 4, or the middle of the 4th foot, as in lines 3 and 7. There is never a word-break exactly in the middle of the line, although pastoral poetry (such as that of Theocritus) often makes a word-break between the 4th and 5th foot, known as a "bucolic caesura". The dactylic hexameter is also used for short epigrams, such as Simonides' epigram commemorating the Spartans who died in the battle of Thermopylae of 480 BC. In this case it is joined with a pentameter, consisting of two sections of two and a