The monograph by N. Yu. Sivkina is the first special study in both domestic and foreign historiography dedicated to the Allied War - the last war in Greece, waged by the Hellenic League and the Aetolian Federation. The author not only recreates the course of hostilities, but also touches on a wide range of issues related to international and social problems of the late 3rd century. BC e. Particular attention is paid to the personality of the penultimate Macedonian king Philip V. The publication is intended both for specialists in antiquity and for everyone interested in ancient history and the military art of antiquity.