Answer:
The Great Peloponnesian War, also called the First Peloponnesian War, was the first major scuffle between them. It became a 15-year conflict between Athens and Sparta and their allies. Peace was decreed by the signing of the Thirty Years Treaty in 445 B.C., effective until 437 B.C., when the Peloponnesian War began
Step-by-step explanation:
Yeah