Joseph Riviere died in 1946, a successful and respected physician. His thinking strongly reflected the views of his time which tended to be legalistic and moral in tone - it was argued that the future of world peace depended on institutions such as the League of Nations and International Tribunals. IMA W can be seen as a true precursor of International Physicians for the Prevention of War (IPPNW)64 and its success was due mostly to the personal efforts of Riviere. He should be recognised as one of the eminent figures in the history of the medical peace movement.