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Third Macedonian War (172 to 168 BC)

Upon Philip's death in Macedon (179 BC), his son, Perseus of Macedon, attempted to restore Macedon's international influence, and moved aggressively against his neighbors. When Perseus was implicated in an assassination plot against an ally of Rome, the Senate declared the third Macedonian War. Initially, Rome did not fare well against the Macedonian forces, but in 168 BC, Roman legions smashed the Macedonian phalanx at the Battle of Pydna. Convinced now that the Greeks (and therefore the rest of the world) would never have peace if Greece was left alone yet again, Rome decided to establish its first permanent foothold in the Greek world. The Kingdom of Macedonia was divided by the Romans into four client republics. Even this proved insufficient to ensure peace, as Macedonian agitation continued.