When World War One began, the soldiers expected to finish off their enemy and be home by Christmas. That was the common perception, which we know today was gravely naive. What circumstances and personalities led to that "war to end all wars?" And in what ways to did this war give rise, only two decades later, to the unthinkable—an even deadlier and longer world war—despite the politicians' determination to avoid World War Two? Join Diana as she unravels the many historical twists and introduces the significant players that forever changed the world.