Ancient Greek warfare enemy, making frontal assaults much more difficult. It also allowed a higher proportion of the soldiers to be actively engaged in combat at a given time (rather than just those in the front rank). The phalanx formed the core of ancient Greek militaries. Because hoplites were all protected by their own shield and others’ shields and spears, they were relatively safe as long as the formation didn't break. When advancing towards an enemy, the phalanx would break into a run that was sufficient to create momentum but not too much as to lose cohesion. The opposing sides would collide viciously,
Regions of ancient Greece () was an ancient Greek region in Epirus. "Macedonia" or "Macedon" (from , "") was an ancient Greek kingdom and region, centered in the northeastern part of the Greek peninsula, bordered by Epirus to the west, Paionia to the north, Thrace to the east and Thessaly to the south. Early geographers put river Strimon as the eastern border of Macedonia with Thrace. However, as kingdom of Macedon was expanding and was pushing east the Thracian tribes, river Nestos was regarded as the eastern border of the region and Sintice, Odomantis and Edonis were included in it. Traditionally part of Thrace