Including such epochal leaders as Joseph Stalin, Nikita Kruschev, and Fidel Castro and such pivotal world organizations as the League of Nations, the British Labour Party, and the Union of Democratic Control, this biography of Konni Zilliacus (1894-1967) chronicles the interactions of important policy makers of the 20th century and Zilliacus's efforts to move United Kingdom foreign policy toward peace and conciliation. He worked with the Union of Democratic Control, a pressure group that preceded the New Left.