Edward N. Luttwak's book "The Strategy of the Byzantine Empire" is an attempt to answer the question of why the Byzantine - Eastern Roman - Empire lasted almost twice as long as the Western. This question has repeatedly attracted the attention of historians. After all, Byzantium did not have any special geographical or military advantages compared to Rome, and the peoples and tribes surrounding it were no less powerful and treacherous than those that, during the fifth century AD, completely ruined the Western Empire. Luttwak's position is interesting in that he explores the sequence of events in Byzantine history, using not only the traditional tools of historical theorists, but also the methodology and set of tools that he mastered in the process of working as a specialist in the study of modern state formations. "Strategy of the Byzantine Empire" - this is the history of the formation and development of a comprehensive strategy of Byzantium, which included many aspects: military affairs, diplomacy, intelligence, economic and financial management. The author shows that Constantinople relied not only and not so much on its military power, but on the tactics of diplomatic and political intrigue, pitting its real and potential enemies against each other, timely concluding political and military alliances and breaking them at the right time. Byzantium rarely sought the final destruction of its rivals: the current enemy may tomorrow become your ally in the fight against another, unexpectedly stronger neighbor. The book is replete with quotes from Byzantine and other sources and is full of colorful details, making it read with unflagging interest. For historians, Byzantinists, classical philologists, specialists in military affairs and military history.