An overview on one of the most successful infantry formations used by Alexander the Great and his successors to dominate the ancient world. The Macedonian pike phalanx dominated the battlefields of Greece and the Near and Middle East for over two centuries. It was one of the most successful infantry formations of the ancient world, only rivaled by the manipular formation of the Roman legions. The phalanx was a key factor in the battlefield success of Alexander the Great and after his death dominated the armies of his Successors (the Diadochoi), who ruled from Greece and Egypt to the borders of India. Richard Taylor gives an overview of the phalanx's development, organization, equipment and training. He analyses the reasons for its success, with an emphasis on case studies of the many battles in which it was used, from Philip II's reign to the Mithridatic Wars. He discusses whether the famous defeats by the Romans necessarily mean it was inherently inferior to the manipular legion tactics, and considers what other factors were in play. The clear, accessible and well-researched text is supported by diagrams and battle maps, making this an outstanding study of this mighty formation.