Siege of Olynthus
347 BCE.
Shown on the map at 40.296°, 23.354°.
The siege of Olynthus was fought in 348 BC between Philip II of Macedon and Olynthians at the ancient city Olynthus. After invading the Chalcidian League in 349 BC, Philip II directed his forces to besiege the last remaining city in the League, resulting in the eventual destruction of Olynthus and the end to the Chalcidian League.
Text from the Wikipedia article Siege of Olynthus (348 BC), licensed CC BY-SA 4.0.