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How did Philip II defeat the Illyrians?
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Philip II
Bust, tentatively identified as Philip II of Macedonia, mid-4th century bce; in the Ny Carlsberg Glyptotek, Copenhagen.
In 358 BCE, Philip II of Macedonia invaded Paeonia and subsequently achieved a decisive victory over the Illyrians. This military success, which demonstrated his emerging skill as a master of war, allowed him to stabilize his western frontier. Later, between 346 and 343 BCE, Philip II further reasserted his suzerainty over the neighboring Illyrians.12