Strike for peace - the British Labour Movement and the International Federation of Trades Unions; paths of European unity, 1918-33 - the Labour Party and the Labour and Socialist International; the Fascist challenge, 1933-39 - the Labour Party and the Labour and Socialist International; the international faith - subject and special interest groups; "arise ye starvelings" - the language of internationalism; "matters affecting women" - international contacts between women, young people and cooperators; conclusion.