Pydna (Third Macedonian War).

Fought June 22, 168 B.C., between the Romans, under Æmilius Paulus, and the Macedonians, under Perseus. The Macedonian phalanx attacked the Roman line, and drove them back on their camp, but becoming disordered by the uneven ground, was broken by the legionaries and cut to pieces. The result was a total defeat of the Macedonians, with a loss of 20,000 killed and 11,000 prisoners. The phalanx here fought its last fight and perished to a man.