Philip II of Macedon was a powerful king who ruled from 359 to 336 BC. He transformed Macedon into a dominant kingdom in ancient Greece through military innovations and strategic alliances. Philip is best known for unifying the Greek city-states under his control, paving the way for his son, Alexander the Great, to expand the empire even further. Philip's reign was marked by significant achievements, including the creation of a professional army and the introduction of the phalanx formation, which changed warfare. His diplomatic skills also helped him secure important marriages and treaties, strengthening his position and influence across the region.