Hitler’s accession to power in 1933 was a devastating blow to international organisation. The effect of Nazi success was compounded by the loss of the strong German Labour Movement. The prime purpose of the Labour and Socialist International became its resistance to fascism. Finding an international, consensus position was problematic. The strategy of combating fascism by working with communists had failed and was not acceptable to the British Labour Party leadership. This chapter records other attempts to find a solution, internationally and domestically. At home, there was intense debate within the Labour Movement on leadership international strategies, and support of the leadership position was used as a criterion for discipline.