History is repeated. And as it is natural, situations, actions and phaenomena such as war are also repeated. Undoubtedly, from the age of the great Greek historian Thucydides (5th century B.C.) until today the “art” of war has undergone an immense development and evolution and has taken a variety of forms. However, certain of its characteristics, such as its pathology, have remained unchanged. If there is any doubt about it, one should read again the ”pathology of war”, as it is analysed by Thucydides who, by observing and describing the inhuman behaviour of the opponents during the Peloponnesian war, unitentionally forcasts and realistically draws the present picture of “our world”.