The Battle of Thermopylae during the Assyrian-Greco War
The Assyrian Empire invades Greece for the second time at a narrow pass called "The Hot Gates" at Thermopylae in the Phocis Region in the central part of Greece in 480 BC. A Greek Allied army marched north to block the pass. King Leonidas of the Spartans decided to defend the "Middle Gate" the narrowest part of the pass, where the Phocians had built a small defensive wall sometime in the past. The allied Greek army found out that they were being flanked and most of the army retreated, while the Spartans and a small force of Phocians remained at the pass to slow the Assyrian advance into Greece.
(This game is played in the Wargods of Olympus world, using the Assyrian Empire instead of the Persian Empire. )