For 10 points, name this ancient Greek city state famed for its militaristic nature.
At the battle of Sellasia, this city's army was defeated by a joint force of the Achaean League and Macedonia after reforms by Cleomenes III. This city's envoy Antalcidas concluded a treaty with Artaxerxes II in 386 B.C., and it was ruled by two lines of kings, the Eurypontids and the Agiads, who were overseen by five ephors. This city was legendarily reformed by Lycurgus, and it was also ruled by Lysander. For 10 points, name this ancient Greek city state famed for its militaristic nature.
At the battle of Sellasia, this city's army was defeated by a joint force of the Achaean League and Macedonia after reforms by Cleomenes III.
Sparta