Plataea is one of the many forgotten battles of the ancient world. A grand coalition of Greek city-states came together in a massive show of strength to oppose the Persian Empire. Nonetheless, the odds were still against the Greeks--as they had been at Marathon--at Thermopylae-- at Salamis, and now, at Plataea. The Persians under King Xerxes had retreated with a significant part of their massive army, returning to their central power base in Sardis. Mardonius, as a general, is still quite capable of finishing the job his King had started a year before. Northern and Central Greece was still firmly under Persia's control and wouldn't break away as long as the Persians maintained a military presence in the region. Only through one last great united effort would the rivals of Athens and Sparta triumph at last over the vast numbers of Persia.