Wars of the Delian League Battle of Marathon. Between the two invasions, Darius died, and responsibility for the war passed to his son Xerxes I. Xerxes then led the second invasion personally in 480 BC, taking an enormous (although oft-exaggerated) army and navy to Greece. Those Greeks who chose to resist (the 'Allies') were defeated in the twin battles of Thermopylae and Artemisium on land and at sea respectively. All of Greece except the Peloponnesus thus fell into Persian hands, but then seeking to finally destroy the Allied navy, the Persians suffered a decisive defeat at the Battle of Salamis. The following year, 479 BC,
Battle of Thermopylae (191 BC) the Aetolians were forced to sue for peace. The battle reaffirmed the advantage of Rome's flexible maniple system against the rigid Hellenic phalanx, especially in battles fought on broken ground or from multiple directions. The battle was described by Appian (included below) and by Livy 36.16-19. Appian's account: Battle of Thermopylae (191 BC) The Battle of Thermopylae was fought in 191 BC between a Roman army led by consul Manius Acilius Glabrio and a Seleucid force led by King Antiochus III the Great. It was the first major battle of the Roman–Seleucid War. The Romans were victorious, and as a