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
Dienekes Dienekes Dienekes or Dieneces (, from διηνεκής, Doric Greek: διανεκής "continuous, unbroken") was a Spartan soldier who fought and died at the Battle of Thermopylae in 480 BC. He was acclaimed the bravest of all the Greeks who fought in that battle. Herodotus (7.226) related the following anecdote about Dienekes: Herodotus also mentions that Dienekes said many other similar things which made him unforgotten. Plutarch in his "Sayings of the Spartans" also mentions this comment, but he attributes it to Leonidas I, Dienekes' general in the battle. According to Plutarch, when one of the soldiers complained to Leonidas that "Because