After the dubious justice of the Treaty of Versailles and the turmoil of the interwar years, the League of Nations is mainly remembered as a body that failed to create mechanisms that might have forestalled the horrors of Nazism, fascism, and the Second World War. It has understandably been overshadowed by the United Nations, that larger, more globally representative body which grew from the League, and which was founded on more unequivocally noble...