In ancient Greece, some phalanxes broke up even before battle was joined. At the Battle of Amphipolis in 422 the Spartans faced an Athenian army. The Spartan phalanx advanced with its customary discipline and determination. They halted to dress their lines, then gave their usual wild war shout. At the sound, the Athenians fled.
from "Alexander the Great at the Battle of the Granicus" by Rupert Matthews. Buy your copy HERE