Alexander's phalanx-The Macedonian phalanx is an infantry formation developed by Philip II and used by his son Alexander the Great to conquer the Achaemenid Empire and defeat armies of other kingdoms.
Spartan phalanx-One of the most effective and enduring military formations in ancient warfare was that of the Greek phalanx. ... The phalanx formation was a close-rank, dense grouping of warriors armed with long spears and interlocking shields.
