Is what we got used to call the international community sliding back into anarchy as it prevailed in the era preceding the League of Nations, the Kellogg-Briand-Pact, and the establishment of the UN? In his impressive study Hendrik Simon demonstrates that this would be a wrong conclusion both with a view to our understanding of "the long 19th Century" and of what perhaps may be called the dialectical trinity of war, order, and peace in general. Simon's study opens up a new way of looking at the history of, and the issues at stake in, more recent aspirations to come to grips with the interplay between war and order.