Iphicrates
Iphicrates (Greek: Ιφικράτης; c. 418 BC – c. 353 BC) was an Athenian general, who flourished in the earlier half of the 4th century BC. He is credited with important infantry reforms that revolutionized ancient Greek warfare by regularizing light-armed peltasts.Cornelius Nepos wrote that Iphicrates was such a leader, that he was not only comparable to the first commanders of his own time, but no one even of the older generals could be set above him. He had a deep knowledge of military tactics, he often had the command of armies and  he never miscarried in an undertaking by his own fault. He was always eminent for invention and excellence that he not only introduced much that was new into the military art, but made many improvements in what existed before.