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
Leonidas at Thermopylae needed a hero to sacrifice himself for the greater good of his country, and the story of Leonidas and the Battle of Thermopylae inspired him. This was all taking place during the French Revolution where enemy soldiers were closing in on the French borders; these events are similar to how the Spartans felt during the Battle at Thermopylae, the core theme of David’s painting. When Napoleon Bonaparte saw the exhibit of David’s latest paintings in 1799, “he criticized the lack of action and the fixed poses of the warriors in "The Sabine Women".” This critique by one of David’s heroes