Battle of Thermopylae at Thermopylae, the Persians sent a mounted scout to reconnoitre. The Greeks allowed him to come up to the camp, observe them, and depart. Xerxes found the scout's reports of the size of the Greek force, and that the Spartans were indulging in callisthenics and combing their long hair, laughable. Seeking the counsel of Demaratus, an exiled Spartan king in his retinue, Xerxes was told the Spartans were preparing for battle, and it was their custom to adorn their hair when they were about to risk their lives. Demaratus called them "the bravest men in Greece" and warned the Great
Battle of Himera (480 BC) aid to avenge the death of Dorieus was ignored by mainland Greece, even by Leonidas of Sparta, brother of Dorieus and who later would win immortal fame at Thermopylae in 480 BC. This possibly demonstrated the futility of opposing Carthage by single Greek cities or the unreliability of aid from mainland Greece, a situation that would change with the rise of the Greek tyrants in Sicily. While Carthage remained engaged in Sardinia after 510 BC, most of the Greek colonies in Sicily fell under the rule of tyrants. The tyrants of Gela, Akragas and Rhegion successfully expanded their dominion at