In this classic text, an eminent historian of international affairs and a distinguished political scientist survey the evolution of the international system, from the emergence of the modern state in the 17th century to the present. Craig and George pay particular attention to the nineteenth century’s “balance-of-power” system, the basic tenets of which still determine many applications of modern diplomacy. The authors also focus on the ways in which the 20th century diplomatic revolution–a complex of military, political, economic and ideological factors–has destroyed the homogeneity of the international community and confronted diplomats with new problems and the need to find new expedients to deal with them.