Antigonid Macedonian army
The Antigonid Macedonian army was the army of the ancient Greek kingdom of Macedonia in the period when it was ruled by the Antigonid dynasty from 294 BC to 288 BC and from 276 BC to 168 BC. It was seen as one of the principal Hellenistic fighting forces until its ultimate defeat at Roman hands at the Battle of Pydna in 168 BC. However, there was a brief resurgence in 150-148 during the revolt of Andriscus, a supposed heir to Perseus. Starting as just a mere handful of mercenary troops under Antigonus Gonatas in the 270s BC, the Antigonid army eventually became the dominant force in Hellenistic Greece, fighting campaigns against Epirus, the Aetolian League, Sparta, Athens, Rhodes and Pergamon, not to mention the numerous Thracian and Celtic tribes that threatened Macedon from the north.
Source: Wikipedia — Antigonid Macedonian army (CC BY-SA 4.0)