E. H. Carr, The 20 Years' Crisis, 1919-1939: An Introduction to the Study of International Relations (1939), on the mistaken belief that everyone wants peace:
Politically, the [incorrect] doctrine of the identity of interests has commonly taken the form of an assumption that every nation has an identical interest in peace, and that any nation which desires to disturb the peace is therefore both irrational and immoral. This view bears clear marks of its Anglo-Saxon origin. It was easy after 1918 to convince that part of mankind which lives in English-speaking countries that war profits nobody. The argument did not seem particularly convincing to Germans, who had profited largely from the wars of 1866 and 1870, and attributed their more recent sufferings, not to the war of 1914, but to the fact that they had lost it; or to Italians, who blamed not the war, but the treachery of allies who defrauded them in the peace settlement; or to Poles or Czecho-Slovaks who, far from deploring the war, owed their national existence to it; or to Frenchmen, who could not unreservedly regret a war which had restored Alsace-Lorraine to France; or to people of other nationalities who remembered profitable wars waged by Great Britain and the United States in the past. But these people had fortunately little influence over the formation of current theories of international relations, which emanated almost exclusively from the English-speaking countries. British and American writers continued to assume that the uselessness of war had been irrefutably demonstrated by the experience of 1914-18, and that an intellectual grasp of this fact was all that was necessary to induce the nations to keep the peace in the future; and they were sincerely puzzled as well as disappointed at the failure of other countries to share this view.
The confusion was increased by the ostentatious readiness of other countries to flatter the Anglo-Saxon world by repeating its slogans. In the fifteen years after the first world war, every Great Power (except, perhaps, Italy) repeatedly did lip-service to the doctrine by declaring peace to be one of the main objects of its policy. But as Lenin observed long ago, peace in itself is a meaningless aim. "Absolutely everybody is in favor of peace in general," he wrote in 1915, "including Kitchener, Joffre, Hindenburg and Nicholas the Bloody, for every one of them wishes to end the war." The common interest in peace masks the fact that some nations desire to maintain the status quo without having to fight for it, and others to change the status quo without having to fight in order to do so.