Idealism in international relations

Idealism in foreign policy holds that a state should make its internal political philosophy the goal of its foreign policy. For example, an idealist might believe that ending poverty at home should be coupled with tackling poverty abroad. U.S. President Woodrow Wilson was an early advocate of idealism. Wilson's idealism was a precursor to liberal international relations theory, which would arise amongst the "institution-builders" after World War II. It particularly emphasized the ideal of American exceptionalism.

More generally, Michael W. Doyle describes idealism as based on the belief that other nations' stated good intentions can be relied on, whereas Realism holds that good intentions are in the long run subject to the security dilemma described by John H. Herz.

Hedley Bull wrote:

"By the 'idealists' we have in mind writers such as Sir Alfred Zimmern, S. H. Bailey, Philip Noel-Baker, and David Mitrany in the United Kingdom, and James T. Shotwell, Pitman Potter, and Parker T. Moon in the United States. ... The distinctive characteristic of these writers was their belief in progress: the belief, in particular, that the system of international relations that had given rise to the First World War was capable of being transformed into a fundamentally more peaceful and just world order; that under the impact of the awakening of democracy, the growth of 'the international mind', the development of the League of Nations, the good works of men of peace or the enlightenment spread by their own teaching, it was in fact being transformed; and that their responsibility as students of international relations was to assist this march of progress to overcome the ignorance, the prejudices, the ill-will, and the sinister interests that stood in its way."

Since the 1880s, there has been growing study of the major writers of this idealist tradition of thought in international relations, including Sir Alfred Zimmern,Norman Angell, John Maynard Keynes,John A. Hobson, Leonard Woolf, Gilbert Murray, Florence Stawell (known as Melian Stawell), Philip Henry Kerr, 11th Marquess of Lothian, Arnold J. Toynbee, Lester Pearson and David Davies.

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