Answer
Spartan subjugation was the oppressive rule of the Spartans over the Messenian helots. Epaminondas, a brilliant Theban general, played a pivotal role in liberating the Messenians from this tyranny. Through his military prowess and strategic alliances, Epaminondas weakened the Spartan grip on Messenia, allowing the helots to regain their freedom and establish their own independent state.