The Battle of Pydna took place on June 22, 168 BC, during the Third Macedonian War. It was fought between the forces of the Roman Republic and the Kingdom of Macedon, led by King Perseus. The Romans, commanded by Lucius Aemilius Paullus, employed superior tactics and discipline, leading to a decisive victory that marked the end of Macedonian power. Following the battle, the Romans established their dominance in the region, leading to the eventual annexation of Macedon. The defeat of Perseus significantly weakened the influence of the Macedonian Empire and paved the way for Roman expansion in the eastern Mediterranean.