A bold and provocative history of the men who fought to outlaw war and how an often overlooked treaty signed in 1928 was among the most transformative events in modern history. On a hot summer afternoon in 1928, the leaders of the world assembled in Paris to outlaw war. Within the year, the treaty signed that day, known as the Peace Pact, had been ratified by nearly every state in the world. War, for the first time in history, had become illegal the...