'This set will become a standard reference work for studies of crisis in the 20th century' Choice, November 1988 'After more than 20 years of work M Brecher and his colleagues have finally erected their monument to quantitive knowledge of international politics. Those who have always differentiated between political science and international relations based on the experimental nature of the former and the evaluative nature of the latter should finally change their minds as a result of this impressive research in the field... This monumental work could truly be, if correctly utilised, representative of a grand historical occasion for the growth of theory, and not only empirical research, of international relations' Teoria Politica No 2, 1988