Rusch Scott. Sparta at War: Strategy, Tactics and Campaigns, 950-362 BC

Frontline Books, 2011. — 272 р. — ISBN: 1848325304.During the eighth century BC, Sparta became one of the leading cities of ancient Greece, conquering the southern Peloponnese, and from the mid-sixth century BC until the mid-fourth, Sparta became a military power of recognized importance. For almost two centuries the massed Spartan army remained unbeaten in the field. Spartan officers also commanded with great success armies of mercenaries or coalition allies, as well as fleets of war galleys.
Although it is the stand of the Three Hundred at Thermopylae that has earned Sparta undying fame, it was her victories over both Persian invaders and the armies and navies of Greek rivals that upheld her position of leadership in Greece.