I don't think Sparta's victory in the Peloponnesian War proves they were better at war. The war was a stalemate on land between Sparta and Athens. Athens ruled

I don't think Sparta's victory in the Peloponnesian War proves they were better at war. The war was a stalemate on land between Sparta and Athens. Athens ruled the waves but couldn't parlay that into victory. Athens committed a major blunder in its invasion of Sicily and that allowed Sparta to win.