And now this is the beginning of the actual Peloponnesian War, the thing that people are referring to when they talk about the Peloponnesian War. In 431 BCE, the king of Asparta is convinced, or is, I guess you could say, he is influenced to, even though he himself was somewhat skeptical of the idea, he decides to invade Attica. Attica is something you'll hear a lot about. It is this region right over here, this little out-jutting of land that Athens is on. And this first phase of the Peloponnesian War is called the Arcadamian War, named for the king of Asparta, who somewhat reluctantly decides to invade Attica. And so that's stage one, Arcadamian War. And the Arcadamian War, its essential ingredients, you have Asparta with its dominant army going and having repeated attacks onto Attica, and the Athenians with their dominant navy going and having raids throughout the Peloponnese and along the Aegean coast.