With Thermopylae blocked to his passage, Philip II of Macedon leads his forces north, asserting dominance over friend and foe alike. Triggering the powerful Chalcidian League to flip their allegiance to Athens and attempt a daring invasion into Macedon while Philip is abroad. Who unleashes a clever diversion and an overwhelming counterattack to decisively end the threat, firmly entrenching Macedon as a major power in Greece. A status galvanized in 346 BCE through masterful deception and diplomatic brilliance, used to seize Thermopylae with Greece now wide open to the Macedonian King. 

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