So you have the Persian fleet gets destroyed decisively at Salamis. You have the Persian army still in Athens, is able to destroy Athens, but the Athenian people have not been destroyed. And so there's a question for Xerxes, what to do at this point? This is all now, this is all in 480 BCE. And what Xerxes decides to do, he says, hey, I don't wanna get stranded in Europe at the edge of my empire. And so Xerxes heads back, but he leaves some of his ground forces there, and they eventually face a decisive defeat at Plataea, Plataea, I should say, right over here. And so that is the last significant threat of the Persians against the Greeks.