Battle of Plataea other. The Allies initially adopted a strategy of blocking land and sea approaches to southern Greece. Thus, in August 480 BC, after hearing of Xerxes' approach, a small Allied army led by Spartan King Leonidas I blocked the Pass of Thermopylae, while an Athenian-dominated navy sailed to the Straits of Artemisium. Famously, the massively outnumbered Greek army held Thermopylae for three days before being outflanked by the Persians, who used a little-known mountain path. Although much of the Greek army retreated, the rearguard, formed of the Spartan and Thespian contingents, was surrounded and annihilated. The simultaneous Battle of Artemisium, consisting
Battle of Mantinea (418 BC) at Mantinea marked a reversal of the trend and the Greeks again recognized the near-invincibility of the Spartans in hoplite combat. Battle of Mantinea (418 BC) The First Battle of Mantinea of 418 BC was a significant engagement in the Peloponnesian War. Sparta and its allies defeated an army led by Argos and Athens. After the conclusion of the alliance between the Argives, Achaeans, Eleans and Athens, the humiliation of the Spartans in the 420 Olympic Games and the invasion of Epidaurus by the allies, the Spartans were compelled to move against them, fearing an alliance with Corinth and having