 In 1922 he was appointed to substitute for Minister of Labour James Murdock at that year's meetings of the International Labour Conference.He was a Canadian employers' representative to the International Labour Organization who was also named by the ILO to sit on the Temporary Mixed Commission for the Reduction of Armaments at the League of Nations from 1921–24.Carnegie took a particular interest in international affairs through the League of Nations Union which was formed in 1918.